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Introducción: El síndrome de desmielinización osmótica es una entidad clínica la cual supone un reto diagnóstico por su curso en muchos casos silentes y por su cuadro clínico que se presenta típicamente de manera tardía. Se describen dos tipos de desmielinización osmótica que pueden presentarse de manera aislada o simultánea: la mielinosis central pontina y la mielinosis extrapontina. Caso clínico: femenina de 21 años sin antecedentes personales con episodio convulsivo tónico clónico por primera vez en su vida. Se le encuentra a su ingreso un nivel de sodio sérico disminuido, razón por la cual se inicia la corrección intravenosa del mismo. Cursó con cefaleas persistentes y vómitos a las 48 horas posterior a la corrección del sodio, y se realizó una resonancia magnética cerebral que evidenció datos de mielinosis extrapontina. Conclusión: La corrección rápida de los niveles de sodio se asocia a la posibilidad de desarrollar mielinosis pontina. La precaución en la corrección de la hiponatremia es la piedra angular para prevenir el desarrollo de esta condición.

Orbilia xanthostigma, with golden yellow to yellow-orange apothecia and O. leucostigma, with white to very pale rose-lilaceous apothecia, were described by E.M. Fries over 200 years ago. Each of the two taxa, which are not easy to interpret because type material is lacking, was proposed in the past as lectotype of the genus Orbilia. In the here presented circumscription, which follows the current usage, O. xanthostigma is among the most frequently recorded species of the genus, whereas O. leucostigma appears to be much less common. Both grow gregariously on decorticated hygric gymno- and angiosperm wood or rarely bark and show a worldwide distribution. They are characterised by minute, strongly curved, warted ascospores and a dicranidion-like anamorph. Except for apothecial colour, there are no other notable morphological differences between them, either in the teleomorph (asci, ascospores, paraphyses) or anamorph (conidiophores, conidia). Because of their strong similarities, the two taxa have often been treated as infraspecific variants (subspecies, varieties) of a single species or even as synonyms. In order to overcome the ambiguities associated with the two names, O. delicatula, a name proposed by P.A. Karsten for a collection with golden yellow apothecia, was suggested by B. Spooner as a replacement name for them. The present study reveals unexpectedly high ITS and LSU variation within a morphologically extremely homogeneous group, representing over 16 more or less invariable genotypes whenever more than one sample with a sequence was available. ITS and LSU rDNA data from European (Luxembourg, Germany, Ukraine) and Macaronesian (Tenerife) collections suggest that the two colour variants represent two distinct species with a 16.5% ITS and 3.5% LSU D1–D2 distance, but very low infraspecific variation (0.2% ITS, 0% LSU). A sample with scattered yellow apothecia from Luxembourg on a xeric branch deviates from typical European-Macaronesian O. xanthostigma by 4% (ITS) and 0.7% (LSU). Further available sequences from samples from Asia, New Zealand and North America with mainly yellow apothecia clustered in various other clades that represent further distinct genotypes. In the absence of morphological characteristics, none of these genotypes are given names pending further investigation. Only two of these genotypes are sufficiently distinct to be recognised morphologically: O. aureocrenulata from tropical, Middle and South America, with golden yellow apothecia with a crenulate margin and prominent stipe, and O. xanthoflexa from temperate, northeastern North America with yellow sessile apothecia with a smooth margin and larger, less curved, smooth-walled ascospores.

Geodina salmonicolor is shown to be a synonym of G. guanacastensis, the type and only species of the genus. Comparisons of ITS rDNA sequences of a paratype and two recent collections of G. guanacastensis with published ITS sequences of G. salmonicolor, from the Dominican Republic, show that these are nearly identical. When G. salmonicolor was erected no sequences of the type species were available. Morphological comparisons supports the conspecificity. Details regarding the description of G. salmonicolor are pointed out. A four-gene phylogeny places Geodina and Wynnea as a supported sister group to the rest of the Sarcoscyphaceae. Species in these genera share morphological traits of cyanophobic spore markings, dark angular outer excipular cells that give rise to hairs and the origin of several apothecia from a common basal stalk. Their occurrence on soil rather than on wood or plant material distinguish them from other Sarcoscyphaceae. Based on morphology, phylogenic relationships and trophic interactions we erect a new family, Wynneaceae, for Geodina and Wynnea.

To study the effectiveness of periarticular infiltration (PI), including the proximal donor site vs. placebo in anterior cruciate ligament (ACL) reconstruction.A total of 44 patients were randomized in two groups assigned to receive PI or placebo. The perioperative protocol was the same for both groups. The principal outcome was pain measured at 8 and 24 h by a visual analog scale (VAS). The pain was registered in the knee and the proximal donor site. Pain scores were also assessed to determine whether the VAS improvement would reach the threshold values reported for the minimal clinically significant difference. The secondary outcome was the need for opioid rescue medication.Patients receiving PI exhibited lower pain values in the knee at 8 h (mean PI 35.00 ± 5.76 vs. placebo 60.23 ± 4.52 p = 0.01) and at 24 h (mean PI 37.23 ± 5.62 vs. placebo 55.55 ± 3.41 p = 0.008). These results were above the threshold for clinical significance. No improvements were found in proximal donor site pain and consumption of opioid rescue medication. Complications were comparable between the two groups.PI significantly reduced pain in the knee vs. placebo after ACL reconstruction with hamstring autograft at 8 and 24 h after surgery. The instillation of part of the mixture in the proximal hamstring stump did not result in any improvement LEVEL OF EVIDENCE I: Level I, randomized controlled trial.

Hymenobolus agaves has been reported only in Europe and Africa on the American plant Agave americana (Asparagaceae). This fungus has never been found in the native range of its host, in arid ecosystems of northern and central Mexico and Texas, USA. It has been suggested to be a pathogen that can kill its host. The fungus grows on succulent leaf bases of the plant. The morphology – black apothecia with a hymenium that disintegrates when asci mature and dark ornamented ascospores – make this species very distinctive, but it has been collected and reported only a few times since its first description. Its systematic position has been unclear, and it has been treated as incertae sedis, that is of uncertain placement, in Leotiomycetes. With recent collections and additional data on the ecology of H. agaves, we use integrative taxonomy (DNA sequences, morphology, ecology) to show its relationships is with Cenangiaceae.

Micraspis acicola was described more than 50 years ago to accommodate a phacidium-like fungus that caused a foliar disease of Picea mariana. After its publication, two more species were added, M. strobilina and M. tetraspora, all of them growing on Pinaceae in the Northern Hemisphere, but each species occupying a unique type of host tissue (needles, cones or wood). Micraspis is considered to be a member of class Leotiomycetes, but was originally placed in Phacidiaceae (Phacidiales), later transferred to Helotiaceae (Helotiales) and recently returned to Phacidiales but in a different family (Tympanidaceae). The genus remains poorly sampled, and hence poorly understood both taxonomically and ecologically. Here, we use morphology, cultures and sequences to provide insights into its systematic position in Leotiomycetes and its ecology. Our results show that the genus should not be included in Tympanidaceae or Phacidiaceae, and support the erection of a new family and order with a unique combination of morphological features supported by molecular data.

The monotypic genus Biatorellina is currently considered a taxonomic synonym of Tryblidiopsis but has an obscure and complicated history. During the revision of the genus Tympanis a syntype of Biatorellina buchsii was fortuitously found and reviewed. Initially our revision led to the hypothesis that B. buchsii could be conspecific with Tympanis confusa. A bibliographic and morphological revision, together with a biometric study, was done using the syntype of B. buchsii and specimens of Tympanis confusa to verify the identity of the genus Biatorellina. Our results show an overlap in the morphology, biometry, distribution and ecology of B. buchsii (≡ Tympanis buchsii) and Tympanis confusa. The identity and the placement of Biatorellina is resolved and B. buchsii is proposed as a synonym of Tympanis confusa.

Background Hallus valgus (HV) negatively impacts health-related quality of life (HRQoL). Patient-reported outcome measures (PROMs) are increasingly used in clinical studies of the foot and ankle. We aimed to evaluate the effect of HV surgery on PROMs (i.e., pain scales, general HRQoL, and region-specific scales) and radiological angles. Additionally, we aimed to determine whether the effect on these outcomes depends on the type of surgery (including open and percutaneous techniques) and if it is influenced by potential confounding factors (i.e., age, HVA, 1–2 IMA, body mass index (BMI), and distal metatarsal articular angle (DMAA). MethodsThis was a longitudinal prospective study. We collected the clinical data of all patients who underwent surgery for symptomatic HV deformity in the orthopedic department of the Virgen de la Luz Hospital of Cuenca (Spain).The clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society (AOFAS) Hallux metatarsophalangeal-interphalangeal (HMI) scale, visual analogue scale (VAS), Manchester Oxford foot questionnaire (MOXFQ), short form health survey (SF-12) and European Quality of Life-5 Dimensions (EQ-5D). ResultsA total of 72 patients (70 women, 97.2%) were included in the study 72 (72 feet).The AOFAS pre–post-surgery score changed from 42.16 (SD: 10.11) to 83.31 (SD: 6.23). Considering AOFAS domains, the pre–post change was from 14.17 (SD: 9.15) to 33.19 (SD: 4.69) for pain, from 27.22 (SD: 3.90) to 37.94 (SD: 2.78) for function, and from 0.78 (SD: 2.38) to 12.18 (SD: 3.45) for alignment. For other clinical outcomes was VAS score from 5.01(SD: 1.26) to 1.26 (SD: 0.96) and MOXFQ score from 61.44 (SD: 7.09) to 12.35 (SD: 4.85). SF-12 (physical) changed from 36.26 (SD: 5.32) to 47.06 (SD: 4.82), SF-12 (mental) from 38.23 (SD: 8.04) to 46.49 (SD: 4.16), and EQ5-D from 0.64 (SD: 0.008) to 0.90 (SD: 0.10). ConclusionsOur data confirmed the improvements in the clinical and radiological outcomes after HV surgery, and provided some evidence of these improvements not depending on the type of surgery or on some potential confounding factors such as BMI, HVA, 1–2 IMA, and DMAA.

Studies of Trochila (Leotiomycetes, Helotiales, Cenangiaceae) are scarce. Here, we describe two new species based on molecular phylogenetic data and morphology. Trochila bostonensis was collected at the Boston Harbor Islands National Recreation Area, Massachusetts. It was found on the stem of Asclepias syriaca, representing the first report of any Trochila species from a plant host in the family Apocynaceae. Trochila urediniophila is associated with the uredinia of the rust fungus Cerotelium fici. It was discovered during a survey for rust hyperparasites conducted at the Arthur Fungarium, in a single sample from 1912 collected in Trinidad. Macro- and micromorphological descriptions, illustrations, and molecular phylogenetic analyses are presented. The two new species are placed in Trochila with high support in both our six-locus (SSU, ITS, LSU, rpb1, rpb2, tef1) and two-locus (ITS, LSU) phylogenetic reconstructions. In addition, two species are combined in Trochila: Trochila colensoi (formerly placed in Pseudopeziza) and T. xishuangbanna (originally described as the only species in Calycellinopsis). This study reveals new host plant families, a new ecological strategy, and a new country record for the genus Trochila. Finally, our work emphasizes the importance of specimens deposited in biological collections such as fungaria.

Since its resurrection, the resinicolous discomycete genus Sarea has been accepted as containing two species, one with black apothecia and pycnidia, and one with orange. We investigate this hypothesis using three ribosomal (nuITS, nuLSU, mtSSU) regions from and morphological examination of 70 specimens collected primarily in Europe and North America. The results of our analyses support separation of the traditional Sarea difformis s.l. and Sarea resinae s.l. into two distinct genera, Sarea and Zythia. Sarea as circumscribed is shown to comprise three phylospecies, with one corresponding to Sarea difformis s.s. and two, morphologically indistinguishable, corresponding to the newly combined Sarea coeloplata. Zythia is maintained as monotypic, containing only a genetically and morphologically variable Z. resinae. The new genus Atrozythia is erected for the new species A. klamathica. Arthrographis lignicola is placed in this genus on molecular grounds, expanding the concept of Sareomycetes by inclusion of a previously unknown type of anamorph. Dating analyses using additional marker regions indicate the emergence of the Sareomycetes was roughly concurrent with the diversification of the genus Pinus, suggesting that this group of fungi emerged to exploit the newly-available resinous ecological niche supplied by Pinus or another, extinct group of conifers. Our phylogeographic studies also permitted us to study the introductions of these fungi to areas where they are not native, including Antarctica, Cape Verde, and New Zealand and are consistent with historical hypotheses of introduction.

Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN. Publisher’s Note A first version of this text was prepared by the first eight authors and the last one, given here. The other listed co-authors in the article PDF support the content, and their actual contributions varied from only support to additions that substantially improved the content. The full details of all co-authors, with their affiliations, are included in Supplementary Table 1 after p.175 of the article for reasons of clarity and space. Slavomír Adamčík Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23 Bratislava, Slovakia Teuvo Ahti Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland M. Catherine Aime Purdue University, 915 W. State St., West Lafayette, Indiana 47907, U.S.A. A. Martyn Ainsworth Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, United Kingdom László Albert Hungarian Mycological Society, 1087 Könyves Kálmán krt. 40, Budapest, Hungary Edgardo Albertó Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús, Universidad Nacional de San Martin-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina Alberto Altés García Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain Dmitry Ageev SIGNATEC Ltd., 630090, Novosibirsk, Akademgorodok (Novosibirsk Scientific Center), Inzhenernaya str., 22, Russia Reinhard Agerer Ludwig-Maximilians-Universität München, Menzinger Str. 67, 80638 München, Germany Begona Aguirre-Hudson Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, United Kingdom Joe Ammirati University of Washington, Seattle, Washington 98195-1800, U.S.A. Harry Andersson Eichhahnweg 29a, 38108 Braunschweig, Germany Claudio Angelini Jardín Botánico Nacional Dr. Rafael Ma. Moscoso, Apartado 21-9, Santo Domingo, Dominican Republic Vladimír Antonín Moravian Museum, Zeny trh 6, 659 37 Brno, Czech Republic Takayuki Aoki Genetic Resources Center, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan André Aptroot ABL Herbarium, G.v.d.Veenstraat 107, 3762 XK Soest, The Netherlands Didier Argaud 40 rue du Justemont, 57290 Fameck, France Blanca Imelda Arguello Sosa Instituto Tecnológico de Ciudad Victoria, Tecnológico Nacional de México, Ciudad Victoria, Tamaulipas, Mexico Arne Aronsen Torødveien 54, 3135 Torød, Norway Ulf Arup Biological Museum, Lund University, Box 117, 221 00 Lund, Sweden Bita Asgari Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization, Tehran, Iran Boris Assyov Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin Str., 1113 Sofia, Bulgaria Violeta Atienza Facultad de Ciencias Biológicas, Universitat de València, C/Dr Moliner 50, 46100, Burjasot, Valencia, Spain Ditte Bandini Panoramastr 47, 69257 Wiesenbach, Germany João Luís Baptista-Ferreira Instituto de Biossistemas e Ciências Integrativas, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal Hans-Otto Baral Blaihofstr. 42, 72074 Tübingen, Germany Tim Baroni The State University of New York, 340 Bowers Hall, P.O. Box 2000, Cortland, New York 13045, U.S.A. Robert Weingart Barreto Universidade Federal de Viçosa, 36570-000, Viçosa, Minas Gerais, Brazil Henry Beker (1) Royal Holloway, University of London, United Kingdom; (2) Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium Ann Bell 45 Gurney Road, Lower Hutt, New Zealand Jean-Michel Bellanger CEFE UMR5175, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier, EPHE, INSERM, 1919 Route de Mende, 34293 Montpellier Cédex 5, France Francesco Bellù Naturmusem of Bolzano, CP 104, 39100, Bolzano, Italy Martin Bemmann Kleingemünderstraße 111, 69118 Heidelberg, Germany Mika Bendiksby NTNU, University Museum, Norwegian University of Science and Technology, 7491 Trondheim, Norway Egil Bendiksen Norwegian Institute for Nature Research, Gaustadalleen 21, 0349 Oslo, Norway Katriina Bendiksen Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, 0318 Oslo, Norway Lajos Benedek Szent Istvan University, Hungary Anna Bérešová-Guttová Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23 Bratislava, Slovakia Franz Berger University of Salzburg, Salzburg, Austria Reinhard Berndt Herbaria Z+ZT, ETH Zürich, CHN D37, Universitätstr. 16, 8092 Zürich, Switzerland Annarosa Bernicchia Via A. Guidotti 39, 40134 Bologna, Italy Alona Yu. Biketova Institute of Biochemistry, BRC-HAS, 6726 Szeged, Temesvari krt. 62, 6726 Szeged, Hungary Enrico Bizio Società Veneziana di Micologia, Società Veneziana di Scienze Naturali, Fontego dei Turchi, Santa Croce 1730, 30135 Venice, Italy Curtis Bjork UBC Herbarium, Beaty Biodiversity Museum, University of British Columbia, Canada Teun Boekhout (1) Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD, Utrecht, The Netherlands; (2) Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands David Boertmann Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark Tanja Böhning AG Geobotanik Schleswig-Holstein & Hamburg, c/o University of Kiel, Olshausenstraße 75, 24098 Kiel, Germany Florent Boittin Ascomycete.org, 36 rue de la Garde, 69005 Lyon, France Carlos G. Boluda Conservatoire et Jardin botaniques de la Ville de Genève, 1292 Genève, Switzerland Menno W. Boomsluiter T.v.Lohuizenstraat 34, 8172xl, Vaassen, The Netherlands Jan Borovička Institute of Geology, Czech Academy of Sciences, Rozvojova 269, 165 00 Prague 6, Czech Republic Tor Erik Brandrud Norwegian Institute for Nature Research, Gaustadalleen 21, 0349 Oslo, Norway Uwe Braun Martin-Luther-Universität, Institut für Biologie, Bereich Geobotanik, und Botanischer Garten, Herbarium, Neuwerk 21, 06099 Halle, Germany Irwin Brodo Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada Tatiana Bulyonkova A.P. Ershov Institute of Informatics Systems, Russian Academy of Sciences, Siberian Branch, 6 Acad. Lavrentjev pr., Novosibirsk 630090, Russia Harold H. Burdsall Jr. Fungal & Decay Diagnostics, LLC, 9350 Union Valley Road, Black Earth, Wisconsin 53515, U.S.A. Bart Buyck Muséum National d’Histoire Naturelle, CP 39, ISYEB, UMR 7205 CNRS MNHN UPMC EPHE, 12 rue Buffon, 75005 Paris, France Ana Rosa Burgaz Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, 28040 Madrid, Spain Vicent Calatayud Fundación CEAM, c/ Charles R. Darwin, 14, Parque Tecnológico, 46980 Paterna, Valencia, Spain Philippe Callac INRA, MycSA, CS 20032, 33882 Villenave d’Ornon, France Emanuele Campo Associazione Micologica Bresadola, Via Alessandro Volta 46, 38123 Trento, Italy Massimo Candusso Via Ottone Primo 90, 17021, Alassio, Savona, Italy Brigitte Capoen Queffioec, rue de Saint Gonval, 22710 Penvenan, France Joaquim Carbó Roser, 60, 17257 Torroella de Montgrí, Girona, Spain Matteo Carbone Via Don Luigi Sturzo 173 16148 Genova, Italy Rafael F. Castañeda-Ruiz Instituto de Investigaciones Fundamentales en Agricultura, Tropical ‘Alejandro de Humboldt’, OSDE, Grupo Agrícola, Calle 1 Esq. 2, Santiago de Las Vegas, C. Habana 17200, Cuba Michael A. Castellano USDA, Forest Service, Northern Research Station, Corvallis, Oregon 97330, U.S.A. Jie Chen Mae Fah Luang University, Chang Wat Chiang Rai 57100, Thailand Philippe Clerc Conservatoire et Jardin botaniques de la Ville de Genève, 1292 Genève, Switzerland Giovanni Consiglio Via C. Ronzani 61, 40033 Casalecchio Bologna, Italy Gilles Corriol National Botanical Conservatory for Pyrenees and Midi-Pyrénées Region of France and BBF Herbarium, Vallon de Salut. B.P. 315. 65203 Bagnères-de-Bigorre, France Régis Courtecuisse Université Lille, Fac. Pharma. Lille, EA4483 IMPECS, 59000 Lille, France Ana Crespo Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain Cathy Cripps Plant Sciences & Plant Pathology, 119 Plant Biosciences Building, Montana State University, Bozeman, Montana 59717, U.S.A. Pedro W. Crous Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD, Utrecht, The Netherlands Gladstone Alves da Silva Universidade Federal de Pernambuco, Centro de Biociências, Avenida da Engenharia, S/N, Cidade Universitária, Recife, Pernambuco, Brazil Meiriele da Silva Universidade Federal de Viçosa, 36570-000, Viçosa, Minas Gerais, Brazil Marjo Dam Hooischelf 13, 6581 SL Malden, The Netherlands Nico Dam Hooischelf 13, 6581 SL Malden, The Netherlands Frank Dämmrich The Bavarian Natural History Collections (SNSB Munich), Menzinger Strasse 71, 80638, München, Germany Kanad Das Botanical Survey of India, Cryptogamic Unit, P.O. Botanic Garden, Howrah 711103, W.B., India Linda Davies Centre for Environmental Policy, Imperial College London, SW7 2AZ, United Kingdom Eske De Crop Ghent University K.L. Ledeganckstraat 35, 9000 Ghent, Belgium Andre De Kesel Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium Ruben De Lange Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium Bárbara De Madrignac Bonzi Instituto de Botánica del Nordeste, Universidad Nacional de Nordeste-Consejo Nacional de Investigaciones Científicas y Técnicas, Sargento Cabral 2131, CC 209, Corrientes Capital, Argentina Thomas Edison E. dela Cruz University of Santo Tomas, Espana 1008 Manila, Philippines Lynn Delgat Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium Vincent Demoulin Institut de Botanique, B.22, Université de Liège, 4000 Liège I, Belgium Dennis E. Desjardin HD Thiers Herbarium (SFSU), San Francisco State University, 1600 Holloway Ave, San Francisco, California 94132, U.S.A. Paul Diederich Musée national d’histoire naturelle, 25 rue Münster, 2160 Luxembourg, Luxembourg Bálint Dima (1) Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, 1117 Budapest, Hungary; (2) Viikki Plant Science Centre, University of Helsinki, P.O. Box 65, 00014 Helsinki, Finland Maria Martha Dios Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Av Belgrano 300, 4700 San Fernando del Valle de Catamarca, Argentina Pradeep Kumar Divakar Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain Clovis Douanla-Meli Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Messeweg 11-12, 38104 Braunschweig, Germany Brian Douglas Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, United Kingdom Elisandro Ricardo Drechsler-Santos Universidade Federal de Santa Catarina, Campus Universitário Reitor João David Ferreira Lima, Trindade, Florianópolis, Santa Catarina CEP 88040-900, Brazil Paul S. Dyer School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom Ursula Eberhardt Abt. Botanik, Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany Damien Ertz Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium Fernando Esteve-Raventós Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain Javier Angel Etayo Salazar Navarro Villoslada 16, 3º dcha., 31003 Pamplona, Navarra, Spain Vera Evenson Sam Mitchel Herbarium of Fungi, Denver Botanic Gardens, 1007 York Street, Denver, Colorado 80206, U.S.A. Guillaume Eyssartier Muséum national d’histoire naturelle, Jardin des plantes, 57 rue Cuvier, 75005 Paris, France Edit Farkas Institute of Ecology and Botany, MTA Centre for Ecological Research, 2163 Vácrátót, Hungary Alain Favre Fédération Mycologique et Botanique Dauphiné Savoie, Le Prieuré, 144 Place de l’Eglise, 74320 Sevrier, France Anna G. Fedosova Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Mario Filippa Regione Monsarinero 36, 14041 Agliano Terme, Italy Péter Finy 8000 Székesfehérvár, Zsombolyai u. 56, Hungary Adam Flakus W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Krakow, Poland Simón Fos Facultad de Ciencias Biológicas, Universitat de València, C/Dr Moliner 50, 46100, Burjasot, Valencia, Spain Jacques Fournier Las Muros, F. 09420 Rimont, France André Fraiture Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium Paolo Franchi Associazione Micologica Bresadola, Via Alessandro Volta 46, 38123 Trento, Italy Ana Esperanza Franco Molano Escuela de Microbiología, Universidad de Antioquia, AA1226, Fundación Biodiversa Colombia, Medellín, Colombia Gernot Friebes Centre of Natural History, Botany & Mycology, Universalmuseum Joanneum, Weinzöttlstraße 16, 8045 Graz, Austria Andreas Frisch NTNU, University Museum, Norwegian University of Science and Technology, 7491 Trondheim, Norway Alan Fryday Michigan State University, East Lansing, Michigan 48824, U.S.A. Giuliana Furci The Fungi Foundation, Paseo Bulnes 79 of. 112A, Santiago, Chile Ricardo Galán Márquez Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain Matteo Garbelotto University of California, 130 Mulford Hall #3114 Berkeley, California 94720, U.S.A. Joaquina Maria Garcia-Martin Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014, Madrid, Spain Mónica A. García Otálora Herbaria Z+ZT, ETH Zürich, CHN D37, Universitätstr. 16, 8092 Zürich, Switzerland Dania García Sánchez Universitat Rovira i Virgili, C/ Sant Llorenç 21, 43201 Reus, Tarragona, Spain Alain Gardiennet 14 rue Roulette, 21260 Véronnes, France Sigisfredo Garnica Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Isla Teja Campus, Casilla 567, Valdivia, Chile Isaac Garrido Benavent Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014, Madrid, Spain Genevieve Gates Tasmanian Institute of Agriculture, Private Bag 54, Hobart, Tasmania 7001, Australia Alice da Cruz Lima Gerlach Conservatoire et Jardin Botaniques de la ville de Genève, Genève, Switzerland Masoomeh Ghobad-Nejhad Iranian Research Organization for Science and Technology, P.O. Box 15815-3538, Tehran 15819, Iran Tatiana B. Gibertoni Universidade Federal de Pernambuco, Centro de Biociências, Avenida da Engenharia, S/N, Cidade Universitária, Recife, Pernambuco, Brazil Tine Grebenc Slovenian Forestry Institute, Vecna pot 2, 100 Ljubljana, Slovenia Irmgard Greilhuber University of Vienna, Rennweg 14, 1030 Vienna, Austria Bella Grishkan Institute of Evolution, University of Haifa, Aba Khoushi Ave. 199, Mt. Carmel, Haifa 3498838, Israel Johannes Z. Groenewald Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD, Utrecht, The Netherlands Martin Grube Institute of Biology, University of Graz, Holteiasse 6, 8010 Graz, Austria Gérald Gruhn Office National des Forêts, 2 Avenue de Saint-Mandé, 75570 Paris Cedex 12, France Cécile Gueidan CSIRO — Australian National Herbarium, Clunies Ross Street, Canberra ACT 2601, Australia Gro Gulden Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, 0318 Oslo, Norway Luis FP Gusmão Universidade Estadual de Feira de Santana, Av. Transnordestina, s/n, Bairro Novo Horizonte, CEP:44036-900, Feira de Santana, Bahia, Brazil Josef Hafellner Institute of Biology, University of Graz, Holteiasse 6, 8010 Graz, Austria Michel Hairaud 2 Impasse des Marronniers, 79360 Poivendre de Marigny, France Marek Halama Museum of Natural History, Wrocław University, ul. H. Sienkiewicza 5, 50-335 Wrocław, Poland Nils Hallenberg University of Gothenburg, Box 461, 40530 Göteborg, Sweden Roy E. Halling Institute of Systematic Botany, New York Botanical Garden, 2900 Southern Blvd, Bronx, New York 10458-5126, U.S.A. Karen Hansen Swedish Museum of Natural History, P.O. Box 50007, 104 05 Stockholm, Sweden Christoffer Bugge Harder Texas Tech University, Box 42122, Lubbock, Texas 79409, U.S.A. Jacob Heilmann-Clausen Natural History Museum of Denmark, Universitetsparken 15, 2100 København, Denmark Stip Helleman Sweelinck 78, 5831KT Boxmeer, The Netherlands Alain Henriot Mycological Society of France, 20 rue Rottembourg, 12th arrondissement, Paris, France Margarita Hernandez-Restrepo Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD, Utrecht, The Netherlands Raphaël Herve 24 rue des Fougères, 86550 Mignaloux-Beauvoir, France Caroline Hobart 84 Stafford Road, Sheffield, South Yorkshire S2 2SF, United Kingdom Mascha Hoffmeister Julius Kühn-Institut, Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany Klaus Høiland University of Oslo, P.O.Box 1066, Blindern, 0316 Oslo, Norway Jan Holec National Museum, Herbarium PRM, Cirkusová 1740, 193 00 Praha 9, Czech Republic Håkon Holien Faculty of Bioscience and Aquaculture, NORD University, P.O. Box 2501, 7729 Steinkjer, Norway Karen Hughes University of Tennessee, Knoxville, Tennessee 37996, U.S.A. Vit Hubka Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic Seppo Huhtinen Herbarium TUR, Biodiversity Unit, University of Turku, 20014 Turku, Finland Boris Ivančević Natural History Museum, Njegoševa 51, P.O. Box 401, 11000 Belgrade, Serbia Marian Jagers Reelaan 13, 7522 LR Enschede, The Netherlands Walter Jaklitsch Institute of Forest Entomology, Forest Pathology and Forest Protection, University of Natural Resources and Life Sciences Vienna, Vienna, Austria AnnaElise Jansen Stationsstraat 10, 6701 AM Wageningen, the Netherlands Ruvishika S. Jayawardena Mae Fah Luang University, Chang Wat Chiang Rai 57100, Thailand Thomas Stjernegaard Jeppesen Global Biodiversity Information Facility, Universitetsparken 15, 2100 København Ø, Denmark Mikael Jeppson Lilla Håjumsgatan 4, 46135 Trollhättan, Sweden Peter Johnston Manaaki Whenua Landcare Research, Private Bag 92170, Auckland 1072, New Zealand Per Magnus Jørgensen University of Bergen, Allégaten 41, P.O. Box 7800, 5020 Bergen, Norway Ingvar Kärnefelt Biological Museum, Lund University, Box 117, 221 00 Lund, Sweden Liudmila B. Kalinina Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Gintaras Kantvilas Tasmanian Herbarium (HO), Tasmanian Museum and Art Gallery, P.O. Box 5058, UTAS LP.O., Sandy Bay, Tasmania 7005, Australia Mitko Karadelev Institute of Biology, Faculty of Natural Science and Mathematics, Ss. Cyril and Methodius University, Arhimedova 5, 1000 Skopje, Republic of Macedonia Taiga Kasuya Faculty of Risk and Crisis Management, Chiba Institute of Science, 3 Shiomi-cho, Choshi, Chiba 288-0025, Japan Ivona Kautmanová Natural History Museum, Slovak National Museum, Bratislava, Slovakia Richard W. Kerrigan RWK Research, Kittanning, Pennsylvania 16201, U.S.A. Martin Kirchmair Institut für Mikrobiologie, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria Anna Kiyashko Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Dániel G. Knapp Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, 1117 Budapest, Hungary Henning Knudsen Natural History Museum of Denmark, Universitetsparken 15, 2100 København, Denmark Kerry Knudsen Faculty of Environmental Sciences, University of Life Sciences at Prague, Prague, Czech Republic Tommy Knutsson Nedra Västerstad 111, 380 62 Mörbylånga, Sweden Miroslav Kolařík Institute of Microbiology ASCR, Videnska 1083, 142 20 Prague 4, Czech Republic Urmas Kõljalg Institute of Ecology and Earth Sciences, 40 Lai Street, Tartu 51005, Estonia Alica Košuthová Swedish Museum of Natural History, P.O. Box 50007, 104 05 Stockholm, Sweden Attila Koszka Faculty of Agricultural and Environmental Sciences, Kaposvar University, 7400 Kaposvar, Hungary Heikki Kotiranta Finnish Environment Institute, P.O. Box 140, 00251 Helsinki, Finland Vera Kotkova Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Ondřej Koukol Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic Jiří Kout University of West Bohemia, Faculty of Education, Klatovska 51, 306 19 Pilsen, Czech Republic Gábor M. Kovács Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, 1117 Budapest, Hungary Martin Kříž Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic Åsa Kruys Museum of Evolution, Uppsala University, Norbyvägen 16, 75236 Uppsala, Sweden Viktor Kučera Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23 Bratislava, Slovakia Linas Kudzma 37 Maple Ave. Annandale, New Jersey 08801, U.S.A. Francisco Kuhar Instituto Multidisciplinario de Biología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Casilla de Correo 495, 5000 Córdoba, Argentina Martin Kukwa Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland T. K. Arun Kumar The Zamorin’s Guruvayurappan College, Kozhikode, Kerala 673014, India Vladimír Kunca Technical University in Zvolen, Ul. T. G. Masaryka 24, 960 53 Zvolen,Slovakia Ivana Kušan Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia Thomas W. Kuyper Wageningen University & Research, Droevendaalsesteeg 4, 6708 PB Wageningen, The Netherlands Carlos Lado Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014, Madrid, Spain Thomas Læssøe Natural History Museum of Denmark, Universitetsparken 15, 2100 København, Denmark Patrice Lainé 123 rue Saint Antoine, 75004, Paris, France Ewald Langer University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany Ellen Larsson University of Gothenburg, Box 461, 40530 Göteborg, Sweden Karl-Henrik Larsson Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, 0318 Oslo, Norway Gary Laursen Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska 99775-7000, U.S.A. Christian Lechat Ascofrance, 64 route de Chizé, 79360 Villiers en Bois, France Serena Lee Herbarium Singapore Botanic Gardens, National Parks Board, Singapore James C. Lendemer (1) Institute of Systematic Botany, New York Botanical Garden, 2900 Southern Blvd, Bronx, New York 10458-5126, U.S.A.; (2) Graduate Center, City University of New York, 365 5th Ave, New York, New York 10016, U.S.A. Laura Levin University of Buenos Aires, Junin 956, 1113, Buenos Aires, Argentina Uwe Lindemann Landesmuseum für Naturkunde, Münster, Germany Håkan Lindström Östansjö 150, 840 64 Kälarne, Sweden Xingzhong Liu Institute of Microbiology, Chinese Academy of Sciences, No 3 Park 1, Beichen West Road, Chaoyang District, Beijing 100101, China Regulo Carlos Llarena Hernandez Facultad de Ciencias Biológicas y Agropecuarias, Peñuela, Universidad Veracruzana, Amatlán de los Reyes, Ver., Mexico Esteve Llop Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028 Barcelona, Spain Csaba Locsmándi Hungarian Natural History Museum, 1087 Budapest, Hungary Deborah Jean Lodge USDA Forest Service, NRS, P.O. Box 1377, Luquillo, Puerto Rico 00773-1377, U.S.A. Michael Loizides P.O. Box 58499, 3734 Limassol, Cyprus László Lőkös Hungarian Natural History Museum, 1087 Budapest, Hungary Jennifer Luangsa-ard National Center for Genetic Engineering and Biotechnology (BIOTEC), NSTDA, 113 Thailand Science Park, Phaholyothin Rd., Klong Nueng, Klong Luang, Pathum Thani 12120, Thailand Matthias Lüderitz AG Geobotanik Schleswig-Holstein & Hamburg, c/o University of Kiel, Olshausenstraße 75, 24098 Kiel, Germany Thorsten Lumbsch Field Museum, 1400 S. Lake Shore Dr., Chicago, Illinois 60605, U.S.A. Matthias Lutz Institute of Evolution and Ecology, University of Tübingen, Auf der Morgenstelle 5, 72076 Tübingen, Germany Dan Mahoney Callaghan Innovation, 69 Gracefield Road, Lower Hutt 5010, New Zealand Ekaterina Malysheva Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Vera Malysheva Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Patinjareveettil Manimohan University of Calicut, Kerala, 673 635, India Yasmina Marin-Felix Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD, Utrecht, The Netherlands Guilhermina Marques Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Tras-os-Montes and Alto Douro, Laboratory of Mycology and Soil Microbiology, 5000-801 Vila Real, Portugal Rubén Martínez-Gil Ascomycete.org, 36 rue de la Garde, 69005 Lyon, France Guy Marson Musée national d’histoire naturelle, 25 rue Münster, 2160 Luxembourg, Luxembourg Gerardo Mata Instituto de Ecología, A.C., Carretera antigua a Coatepec 351, El Haya, Xalapa 91070, Veracruz, Mexico P. Brandon Matheny University of Tennessee, Knoxville, Tennessee 37996, U.S.A. Geir Harald Mathiassen Tromsø University Museum, University of Tromsø — The Arctic University of Norway, 9037 Tromsø, Norway Neven Matočec Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia Helmut Mayrhofer Institute of Biology, University of Graz, Holteiasse 6, 8010 Graz, Austria Mehdi Mehrabi Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization, Tehran, Iran Ireneia Melo Botanical Garden, National Museum of Natural History and Science, University of Lisbon, Portugal Armin Mešić Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia Andrew S. Methven Savannah State University, Savannah, Georgia 31404, U.S.A Otto Miettinen Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland Ana M. Millanes Romero Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain Andrew N. Miller Illinois Natural History Survey, University of Illinois Urbana-Champaign, 1816 South Oak Street, Champaign, Illinois 61820-6970, U.S.A. James K. Mitchell Harvard University, 22 Divinity Avenue, Cambridge, Massachusetts 02138, U.S.A. Roland Moberg Museum of Evolution, Uppsala University, Norbyvägen 16, 75236 Uppsala, Sweden Pierre-Arthur Moreau Université Lille, Fac. Pharma. Lille, EA4483 IMPECS, 59000 Lille, France Gabriel Moreno Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain Olga Morozova Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Asunción Morte Facultad de Biología, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain Lucia Muggia University of Trieste, via L. Giorgieri 10, 34127 Trieste, Italy Guillermo Muñoz González Avda Valvanera N.32, 5D, 26500 Calahorra, La Rioja, Spain Leena Myllys Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland István Nagy Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, 1117 Budapest, Hungary László G. Nagy Institute of Biochemistry, BRC-HAS, 6726 Szeged, Temesvari krt. 62, 6726 Szeged, Hungary Maria Alice Neves Universidade Federal de Santa Catarina, Campus Universitário Reitor João David Ferreira Lima, Trindade, Florianópolis, Santa Catarina CEP 88040-900, Brazil Tuomo Niemelä Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland Pier Luigi Nimis University of Trieste, via L. Giorgieri 10, 34127 Trieste, Italy Nicolas Niveiro Instituto de Botánica del Nordeste, Universidad Nacional de Nordeste-Consejo Nacional de Investigaciones Científicas y Técnicas, Sargento Cabral 2131, CC 209, Corrientes Capital, Argentina Machiel E. Noordeloos Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands Anders Nordin Museum of Evolution, Uppsala University, Norbyvägen 16, 75236 Uppsala, Sweden Sara Raouia Noumeur Faculty of Natural and Life Sciences, University of Batna 2, 05000 Batna, Algeria Yuri Novozhilov Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Jorinde Nuytinck Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands Esteri Ohenoja Botanical Museum, University of Oulu, Finland Patricia Oliveira Fiuza Universidade Estadual de Feira de Santana, Av. Transnordestina, s/n, Bairro Novo Horizonte, CEP:44036-900, Feira de Santana, Bahia, Brazil Alan Orange National Museum of Wales, Cardiff CF10 3NP, United Kingdom Alexander Ordynets University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany Beatriz Ortiz-Santana USDA Forest Service, Northern Research Station, One Gifford Pinchot Dr, Madison, Wisconsin 53726, U.S.A. Leticia Pacheco Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, 09340 México, D. F., Mexico Ferenc Pál-Fám Faculty of Agricultural and Environmental Sciences, Kaposvar University, 7400 Kaposvar, Hungary Melissa Palacio Universidade Federal do Rio Grande do Sul, Brazil Zdeněk Palice Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic Viktor Papp Szent Istvan University, 1118 Budapest, Menesi st. 44, Hungary Kadri Pärtelv Institute of Ecology and Earth Sciences, 40 Lai Street, Tartu 51005, Estonia Julia Pawlowska Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland Aurelia Paz Urb. La Llosa, 219, 39509 Villanueva de la Peña, Mazcuerras, Cantabria, Spain Ursula Peintner Institut für Mikrobiologie, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria Shaun Pennycook Manaaki Whenua Landcare Research, Private Bag 92170, Auckland 1072, New Zealand Olinto Liparini Pereira Universidade Federal de Viçosa, 36570-000, Viçosa, Minas Gerais, Brazil Pablo Pérez Daniëls University of Córdoba, 14071, Córdoba, Spain Miquel À. Pérez-De-Gregorio Capella C/ Pau Casals, 6, 1º, 1ª, 17001, Girona, Spain Carlos Manuel Pérez del Amo C/ Luis de Ulloa, 1, 7º I, 26004 Logroño, Navarra, Spain Sergio Pérez Gorjón Universidad de Salamanca, Avda. Licenciado Mendez Nieto s/n, 37007 Salamanca, Spain Sergio Pérez-Ortega Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014, Madrid, Spain Israel Pérez-Vargas Facultad de Farmacia, Universidad de La Laguna, c/ Astrofísico Sánchez s/n 38071 La Laguna, Tenerife, Canary Islands, Spain Brian A. Perry California State University East Bay, Hayward, California 94542, U.S.A. Jens H. Petersen Nøruplundvej 2, 8400 Ebeltoft, Denmark Ronald H. Petersen University of Tennessee, Knoxville, Tennessee 37996, U.S.A. Donald H. Pfister Harvard University, 22 Divinity Avenue, Cambridge MA 02138, U.S.A. Chayanard Phukhamsakda Mae Fah Luang University, Chang Wat Chiang Rai 57100, Thailand Marcin Piątek W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Krakow, Poland Meike Piepenbring Faculty of Biosciences, Goethe University Frankfurt am Main, Germany Raquel Pino-Bodas Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014, Madrid, Spain Juan Pablo Pinzón Esquivel Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, Apdo. Postal: 4-116 Itzimná,C.P: 97100, Merida, Yucatan, Mexico Paul Pirot Rue des Peupliers 10, 6840 Neufchâteau, Belgium Eugene S. Popov Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Orlando Popoff Instituto de Botánica del Nordeste, Universidad Nacional de Nordeste-Consejo Nacional de Investigaciones Científicas y Técnicas, Sargento Cabral 2131, CC 209, Corrientes Capital, Argentina María Prieto Álvaro Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain Christian Printzen Senckenberg Forschungsinstitut und Naturmuseum Frankfurt, Abteilung Botanik und Molekulare Evolutionsforschung, Herbarium Senckenbergianum (FR), Senckenberganlage 25, 60325 Frankfurt am Main, Germany Nadezhda Psurtseva Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Witoon Purahong Helmholtz Centre for Environmental Research GmbH — UFZ, Theodor-Lieser-Straße 4, 06120 Halle, Germany Luis Quijada Harvard University, 22 Divinity Avenue, Cambridge, Massachusetts 02138, U.S.A. Gerhard Rambold University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany Natalia A. Ramírez Instituto de Botánica del Nordeste, Universidad Nacional de Nordeste-Consejo Nacional de Investigaciones Científicas y Técnicas, Sargento Cabral 2131, CC 209, Corrientes Capital, Argentina Huzefa Raja University of North Carolina at Greensboro, 435 Sullivan Science Building, PO Box 26170, Greensboro North Carolina 27402-6170, U.S.A. Olivier Raspé Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium Tania Raymundo Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Miguel Hidalgo, Santo Tomás, 11340 Ciudad de México, Mexico Martina Réblová Institute of Botany, Czech Academy of Sciences, Pruhonice, Czech Republic Yury A. Rebriev Southern Scientific Center, Russian Academy of Sciences, 41 Chehova str., Rostov-on-Don, 344006, Russia Juan de Dios Reyes García Paseo Virgen de Linarejos 6 2 D, Linares, Jaen, Spain Miguel Ángel Ribes Ripoll Avda. Pablo Neruda 120 F, 2°D, 28018 Madrid, Spain Franck Richard CEFE UMR5175, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier, EPHE, INSERM, 1919 Route de Mende, 34293 Montpellier Cédex 5, France Mike J. Richardson Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, United Kingdom Víctor J. Rico Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain Gerardo Lucio Robledo Instituto Multidisciplinario de Biología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Casilla de Correo 495, 5000 Córdoba, Argentina Flavia Rodrigues Barbosa Universidade Federal de Mato Grosso, Av. Alexandre Ferronato, 1200, Setor Industrial, Sinop, Mato Grosso, Brazil Cristina Rodriguez-Caycedo UT Southwestern Medical Center, Dallas, Texas 75390, U.S.A. Pamela Rodriguez-Flakus W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Krakow, Poland Anna Ronikier W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Krakow, Poland Luis Rubio Casas Ul. Andrieja Sacharowa 1/1, 30-806 Kraków, Poland Katerina Rusevska Institute of Biology, Faculty of Natural Science and Mathematics, Ss. Cyril and Methodius University, Arhimedova 5, 1000 Skopje, Republic of Macedonia Günter Saar Dammenmühle 7, 77933 Lahr-Sulz, Germany Irja Saar Institute of Ecology and Earth Sciences, 40 Lai Street, Tartu 51005, Estonia Isabel Salcedo University of the Basque Country (UPV/EHU), Apdo 644, 48080 Bilbao, Spain Sergio M. Salcedo Martínez Facultad de Ciencias Biológicas, UANL. Ave. Pedro de Alba s/n esq. Manuel Barragán Cd. Universitaria, San Nicolás de los Garza Nuevo León, CP. 66451, Mexico Carlos A. Salvador Montoya Instituto de Botánica del Nordeste, Universidad Nacional de Nordeste-Consejo Nacional de Investigaciones Científicas y Técnicas, Sargento Cabral 2131, CC 209, Corrientes Capital, Argentina Santiago Sánchez-Ramírez University of Toronto, 100 Queen’s Park, Toronto, Ontario M5S 2C6, Canada J. Vladimir Sandoval-Sierra Health Science Centre, University of Tennessee, U.S.A. Sergi Santamaria Facultat de Biociències, Edifici C, Despatx C1/331, Campus de la UAB, 08193 Bellaterra, (Cerdanyola del Vallès), Barcelona, Spain Josiane Santana Monteiro Botany Coordination, Museu Paraense Emílio Goeldi, 66077-830, Belém, Pará, Brazil Hans Josef Schroers Agricultural Institute of Slovenia, Hacquetova ulica 17, 1000 Ljubljana, Slovenia Barbara Schulz Institute of Microbiology, Technische Universität Braunschweig, Germany Geert Schmidt-Stohn Burgstr. 25, 29553 Bienenbüttel, Germany Trond Schumacher University of Oslo, P.O.Box 1066, Blindern, 0316 Oslo, Norway Beatrice Senn-Irlet RU Biodiversity and Conservation Biology, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstr. 111, 8903 Birmensdorf, Switzerland Hana Ševčíková Moravian Museum, Zeny trh 6, 659 37 Brno, Czech Republic Oleg Shchepin Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Takashi Shirouzu Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan Anton Shiryaev Institute of Plant & Animal Ecology Ural Branch of the Russian Academy of Sciences, 620144 Ekaterinburg, 8 March str., 202/3, Russia Klaus Siepe Geeste 133, 46342 Velen, Germany Esteban B. Sir Fundación Miguel Lillo, Consejo Nacional de Investigaciones Científicas y Técnicas, Miguel Lillo 251, San Miguel de Tucumán 4000, Tucumán, Argentina Mohammad Sohrabi Iranian Research Organization for Science and Technology, P.O. Box 33535111, Tehran, Iran Karl Soop Swedish Museum of Natural History, P.O. Box 50007, 104 05 Stockholm, Sweden Viacheslav Spirin Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland Toby Spribille University of Alberta, Edmonton, Alberta T6G 2R3, Canada Marc Stadler Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany Joost Stalpers Torenlaan 43, 3742CR Baarn, The Netherlands Soili Stenroos Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland Ave Suija Institute of Ecology and Earth Sciences, 40 Lai Street, Tartu 51005, Estonia Stellan Sunhede Hökaskog Sandbacken 1, 533 92 Lundsbrunn, Sweden Sten Svantesson University of Gothenburg, Box 461, 40530 Göteborg, Sweden Sigvard Svensson Biological Museum, Lund University, Box 117, 221 00 Lund, Sweden Tatyana Yu. Svetasheva (1) Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia; (2) Department of Technologies of Living Systems, Tula State Lev Tolstoy Pedagogical University, Lenin ave. 125, Tula, 300026, Russia Krzysztof Świerkosz Museum of Natural History, Wrocław University, ul. H. Sienkiewicza 5, 50-335 Wrocław, Poland Heidi Tamm Institute of Ecology and Earth Sciences, 40 Lai Street, Tartu 51005, Estonia Hatira Taskin Faculty of Agriculture, University of Çukurova, 01330 Adana, Turkey Adrien Taudière CEFE UMR5175, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier, EPHE, INSERM, 1919 Route de Mende, 34293 Montpellier Cédex 5, France Jan-Olof Tedebrand Sundsvall Mycological Society, Medelpad, Sweden Raúl Tena Lahoz C/Arreñales del Portillo B 21 1°D, 44003 Teruel, Spain Marina Temina Institute of Evolution, University of Haifa, Aba Khoushi Ave. 199, Mt. Carmel, Haifa 3498838, Israel Arne Thell Biological Museum, Lund University, Box 117, 221 00 Lund, Sweden Marco Thines Faculty of Biosciences, Goethe University Frankfurt am Main, Germany Göran Thor Swedish University of Agricultural Sciences, P. O. Box 7044, 750 07 Uppsala, Sweden Holger Thüs State Museum of Natural History Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany Leif Tibell Evolutionary Biology Centre, Norbyvägen 18D, 75236 Uppsala, Sweden Sanja Tibell Evolutionary Biology Centre, Norbyvägen 18D, 75236 Uppsala, Sweden Einar Timdal Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, 0318 Oslo, Norway Zdenko Tkalčec Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia Tor Tønsberg University of Bergen, Allégaten 41, P.O. Box 7800, 5020 Bergen, Norway Gérard Trichies 5, impasse des Écoles S7700 Neufchef, France Dagmar Triebel Botanische Staatssammlung München, Menzinger Straße 67, 80638 München, Germany Andrei Tsurykau (1) F. Skorina Gomel State University, Sovetskaja Str. 104, 246019 Gomel, Belarus; (2) Institute of Natural Sciences, Samara National Research University, Moskovskoye shosse 34, 443086 Samara, Russia Rodham E. Tulloss Herbarium Amanitarum Rooseveltensis, P. O. Box 57, Roosevelt, New Jersey 08555-0057, U.S.A. Veera Tuovinen University of Alberta, Edmonton, Alberta T6G 2R3, Canada Miguel Ulloa Sosa Universidad Nacional Autónoma de México, Tercer Circuito/Sin Número, Ciudad Universitaria, Ciudad de México, C. P. 04510, Mexico Carlos Urcelay Instituto Multidisciplinario de Biología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Casilla de Correo 495, 5000 Córdoba, Argentina François Valade 11 rue haras, le boqueteau, 91240 Saint-Michel-sur-Orge, France Ricardo Valenzuela Garza Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Miguel Hidalgo, Santo Tomás, 11340 Ciudad de México, Mexico Pieter van den Boom Arafura 16, 5691 JA Son, The Netherlands Nicolas Van Vooren Ascomycete.org, 36 rue de la Garde, 69005 Lyon, France Aida M. Vasco-Palacios Escuela de Microbiología, Universidad de Antioquia, AA1226, Fundación Biodiversa Colombia, Medellín, Colombia Jukka Vauras Herbarium TUR, Biodiversity Unit, University of Turku, 20014 Turku, Finland Juan Manuel Velasco Santos 3 C/Pontevedra, 18, 1º C, 37003 Salamanca, Spain Else Vellinga 861 Keeler Avenue, Berkeley, California 94708, U.S.A. Annemieke Verbeken Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium Per Vetlesen Norges Sopp- og Nyttevekstforbund, Schweigaards gate 34F, 0191 Oslo, Norway Alfredo Vizzini University of Torino, Viale P.A. Mattioli 25, 10125, Torino, Italy Hermann Voglmayr University of Vienna, Rennweg 14, 1030 Vienna, Austria Sergey Volobuev Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia Wolfgang von Brackel Kirchenweg 2, 91341 Röttenbach, Germany Elena Voronina Lomonosov Moscow State University, Biology Faculty, Moscow, Russia Grit Walther Arvid-Harnack-Str. 4, 07743 Jena, Germany Roy Watling Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, United Kingdom Evi Weber Blaihofstr. 42, 72074 Tübingen, Germany Mats Wedin Swedish Museum of Natural History, P.O. Box 50007, 104 05 Stockholm, Sweden Øyvind Weholt Nord University, Nesna, 8700 Nesna, Norway Martin Westberg Museum of Evolution, Uppsala University, Norbyvägen 16, 75236 Uppsala, Sweden Eugene Yurchenko Polessky State University, Dnyaprouskai flatylii str. 23, 225710, Pinsk, Belarus Petr Zehnálek Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic Huang Zhang Kunming University of Science & Technology, Kunming, China Mikhail P. Zhurbenko Komarov Botanical Institute of the Russian Academy of Sciences, 2 Prof. Popov Street, St. Petersburg, 197376, Russia The following institutions are also supporting the present text (institutional support means that committees from the mentioned) Asociación Micológica Carlos Spegazzini (Argentina) Austrian Mycological Society (Austria) Croatian Mycological Society (Croatia) Committee of the Czech Scientific Society for Mycology (Czech Republic) The Netherlands Mycological Society (The Netherlands) Sociedad Española de Liquenología (Portugal/Spain) Iberian Mycological Society (which is under constitution, Portugal/Spain) Federación de Asociaciones Micológicas Andaluzas (FAMA) (Spain) Asociación Botánica y Micológica de Jaén (Spain) Asociación Micológica Hispalense Muscaria (Spain) Societat Micològica Valenciana (Spain)

The only hitherto known species of the monotypic genus Tromeropsis, the rarely reported T. microtheca, is redescribed from recent collections on mostly little decayed, grayed, xeric, sun-exposed wood of decorticated trunks and branches of different gymnosperms, exceptionally angiosperms, from different humid regions of central Europe and a dry area in Macaronesia. Two further, very similar species are here newly described from decayed xeric wood of different angiosperm trees and shrubs from dry to arid regions of North America, Australia, and Macaronesia. Characteristics of the genus are: black sessile apothecia, dark olivaceous exudate, fissitunicate multi-spored asci, minute, cylindrical to ellipsoid, hyaline ascospores, a yeast-like asexual morph, and, in some species, a synanamorph with allantoid conidia formed on integrated conidiogenous cells reminiscent of the genus Lecythophora but with holoblastic conidiogenesis. A lectotype is designated for the type species of the likewise sexually typified, monotypic, illegitimate genus Microspora, M. dura, which was re-examined from the original material and found to be a later synonym of T. microtheca. Nuclear rDNA data were obtained from two collections of T. microtheca and four collections of the two new species. DNA sequences of T. microtheca match those from asexual morph isolates or environmental samples in public databases. Different misapplied names attributed to sequences from asexual morph isolates gained from coniferous wood from northern Europe, North America, and eastern Asia were re-identified as T. microtheca. A very close relationship between Tromeropsis and the type species of the asexually typified genus Symbiotaphrina, S. buchneri, was observed. Independent molecular phylogenetic analyses of three rDNA regions (partial SSU, ITS, partial LSU) each place Tromeropsis and the type species of Symbiotaphrina in a single supported clade without showing clear limits between the two genera. Based on multigene analysis, Symbiotaphrina was recently placed together with the small order Xylonales in the new class Xylonomycetes. We here validate the order Symbiotaphrinales previously published as nom. nud. and describe the family Symbiotaphrinaceae. Since the name Symbiotaphrina was validated one year before Tromeropsis was published, and is more widely used, it is adopted here and T. microtheca combined into Symbiotaphrina. rDNA data further suggest that two members of the asexually typified genus Hyphozyma, H. lignicola and H. sanguinea, belong to Symbiotaphrina, whereas the type species of Hyphozyma, H. variabilis, clusters in the Thelebolales (Leotiomycetes), where it is a later synonym of Cleistothelebolus nipigonensis, the type species of Cleistothelebolus. The new combinations S. lignicola and S. sanguinea are proposed, to which the newly described species S. desertorum and S. larreae are added. Based on their close relationship and a similar yeast-like asexual morph in pure culture, we hypothesize that the life cycles of all these wood-inhabiting taxa include a symbiotic phase in the gut of arthropods and, conversely, we suppose that the life cycles of S. buchneri and S. kochii include unknown sexual morphs growing on plant substrate.

Four species of the genus Hyaloscypha are presented for the Canary Islands. The study is based on recent collections and 12 previous records. The earlier reports of the genus (Hyaloscypha fuckelii, H. hyalina and H. leuconica) are corrected. All of the reported species are new to the Canarian archipelago (H. aureliella, H. intacta, H. spiralis and H. strobicola), and only one has been reported before from the Macaronesian region (H. aureliella). A key, descriptions, illustrations and notes about ecology are provided. Citation: Quijada L., Huhtinen S., Negrin R. & Beltran-Tejera E. 2017: Studies in Hyaloscyphaceae associated with major vegetation types in the Canary Islands II: a revision of Hyaloscypha. — Willdenowia 47: 31–42. doi: https://doi.org/10.3372/wi.47.47104 Version of record first published online on 13 February 2017 ahead of inclusion in April 2017 issue.

Fungi in the class Leotiomycetes are ecologically diverse, including mycorrhizas, endophytes of roots and leaves, plant pathogens, aquatic and aero-aquatic hyphomycetes, mammalian pathogens, and saprobes. These fungi are commonly detected in cultures from diseased tissue and from environmental DNA extracts. The identification of specimens from such character-poor samples increasingly relies on DNA sequencing. However, the current classification of Leotiomycetes is still largely based on morphologically defined taxa, especially at higher taxonomic levels. Consequently, the formal Leotiomycetes classification is frequently poorly congruent with the relationships suggested by DNA sequencing studies. Previous class-wide phylogenies of Leotiomycetes have been based on ribosomal DNA markers, with most of the published multi-gene studies being focussed on particular genera or families. In this paper we collate data available from specimens representing both sexual and asexual morphs from across the genetic breadth of the class, with a focus on generic type species, to present a phylogeny based on up to 15 concatenated genes across 279 specimens. Included in the dataset are genes that were extracted from 72 of the genomes available for the class, including 10 new genomes released with this study. To test the statistical support for the deepest branches in the phylogeny, an additional phylogeny based on 3156 genes from 51 selected genomes is also presented. To fill some of the taxonomic gaps in the 15-gene phylogeny, we further present an ITS gene tree, particularly targeting ex-type specimens of generic type species. A small number of novel taxa are proposed: Marthamycetales ord. nov., and Drepanopezizaceae and Mniaeciaceae fams. nov. The formal taxonomic changes are limited in part because of the ad hoc nature of taxon and specimen selection, based purely on the availability of data. The phylogeny constitutes a framework for enabling future taxonomically targeted studies using deliberate specimen selection. Such studies will ideally include designation of epitypes for the type species of those genera for which DNA is not able to be extracted from the original type specimen, and consideration of morphological characters whenever genetically defined clades are recognized as formal taxa within a classification. Electronic supplementary material The online version of this article (10.1186/s43008-019-0002-x) contains supplementary material, which is available to authorized users.

Triblidiaceae is a family of uncommonly encountered, non-lichenized discomycetes. A recent classification circumscribed the family to includeTriblidium(4 spp. and 1 subsp.),Huangshania(2 spp.) andPseudographis(2 spp. and 1 var.). The apothecia of these fungi are persistent and drought-tolerant; they possess stromatic, highly melanized covering layers that open and close with fluctuations of humidity. Triblidialean fungi occur primarily on the bark ofQuercus, Pinaceae and Ericaceae, presumably as saprobes. Though the type species ofHuangshaniais from China, these fungi are mostly known from collections originating from Western Hemisphere temperate and boreal forests. The higher-rank classification of triblidialean fungi has been in flux due in part to an overemphasis on ascospore morphology. Muriform ascospores are observed in species ofTriblidiumand inPseudographiselatina. An intense, dark blue/purple ascospore wall reaction in iodine-based reagents is observed in species ofPseudographis. These morphologies have led, in part, to these genera being shuffled among unrelated taxa in Hysteriaceae (Dothideomycetes, Hysteriales) and Graphidaceae (Lecanoromycetes, Ostropales). Triblidiaceae has been placed within the monofamilial order Triblidiales (affinity Lecanoromycetes). Here, we demonstrate with a three-gene phylogenetic approach that triblidialean fungi are related to taxa in Rhytismatales (Leotiomycetes). We synonymize Triblidiales under Rhytismatales and emend Triblidiaceae to includeTriblidiumandHuangshania, withPseudographisplaced within Rhytismataceae. A history of Triblidiaceae is provided along with a description of the emended family. We discuss how the inclusion of triblidialean fungi in Rhytismatales brings some rarely observed or even unique ascospore morphologies to the order and to Leotiomycetes.

Orbilia jesu-laurae is a new species of nematode-trapping fungus found on decorticated angiosperm wood in a tropical rainforest in Puerto Rico. The single specimen was studied from fresh apothecia and cultures. Morphology was studied and phylogenetic analysis (rDNA: ITS and LSU) was conducted using both sexual and asexual morphs. Nematodes were added to cultures to verify the formation and morphology of the trapping structures. Our results show that the species is in the Arthrobotrys clade, the phylogenetically closest relative being a possibly Mexican genotype with unknown morphology, erroneously referred to as Arthrobotrys musiformis in GenBank. Macro- and micromorphological, ecological and biogeographic data are provided along with a discussion of closely related species.Citation: Quijada L., Baral H.-O., Beltran-Tejera E. & Pfister D. H. 2020: Orbilia jesu-laurae (Ascomycota, Orbiliomycetes), a new species of neotropical nematode-trapping fungus from Puerto Rico, supported by morphology and molecular phylogenetics. – Willdenowia 50: 241–251.Version of record first published online on 2 June 2020 ahead of inclusion in August 2020 issue.

Between December 2012 and May 2017, we conducted a fungal inventory at the Boston Harbor Islands National Recreation Area (BHI) in Massachusetts. We extensively sampled 4 sites (Grape Island, Peddocks Island, Thompson Island, and World's End peninsula) and occasionally visited 4 others for sampling (Calf Island, Great Brewster Island, Slate Island, and Webb Memorial State Park). We made over 900 collections, of which 313 have been identified. The survey yielded 172 species in 123 genera, 62 families, 24 orders, 11 classes, and 2 phyla. We report 4 species as new, but not formally described, in the genera Orbilia, Resupinatus, and Xylaria. Another collection in the genus Lactarius may be new to science, but further morphological and molecular work is needed to confirm this conclusion. Additionally, Orbilia aprilis is a new report for North America, Proliferodiscus earoleucus represents only the second report for the US, and Chrysosporium sulfureum, a common fungus of some cheeses, was discovered on woodlice (Crustacea: Malacostraca: Isopoda: Oniscidea). We discuss our findings in the light of DNA-based identifications using the ITS ribosomal DNA region, including the advantages and disadvantages of this approach, and stress the need for biodiversity studies in urbanized areas during all seasons.

Novel species of fungi described in this study include those from various countries as follows: Angola, Gnomoniopsis angolensis and Pseudopithomyces angolensis on unknown host plants. Australia, Dothiora corymbiae on Corymbia citriodora, Neoeucasphaeria eucalypti (incl. Neoeucasphaeria gen. nov.)on Eucalyptus sp., Fumagopsis stellae on Eucalyptus sp., Fusculina eucalyptorum (incl. Fusculinaceae fam. nov.) on Eucalyptus socialis, Harknessia corymbiicola on Corymbia maculata, Neocelosporium eucalypti (incl. Neocelosporium gen. nov., Neocelosporiaceae fam. nov. and Neocelosporiales ord. nov.) on Eucalyptus cyanophylla, Neophaeomoniella corymbiae on Corymbia citriodora, Neophaeomoniella eucalyptigena on Eucalyptus pilularis, Pseudoplagiostoma corymbiicola on Corymbia citriodora, Teratosphaeria gracilis on Eucalyptus gracilis, Zasmidium corymbiae on Corymbia citriodora. Brazil, Calonectria hemileiae on pustules of Hemileia vastatrix formed on leaves of Coffea arabica, Calvatia caatinguensis on soil, Cercospora solani-betacei on Solanum betaceum, Clathrus natalensis on soil, Diaporthe poincianellae on Poincianella pyramidalis, Geastrum piquiriunense on soil, Geosmithia carolliae on wing of Carollia perspicillata, Henningsia resupinata on wood, Penicillium guaibinense from soil, Periconia caespitosa from leaf litter, Pseudocercospora styracina on Styrax sp., Simplicillium filiforme as endophyte from Citrullus lanatus, Thozetella pindobacuensis on leaf litter, Xenosonderhenia coussapoae on Coussapoa floccosa., Canary Islands (Spain), Orbilia amarilla on Euphorbia canariensis. Cape Verde Islands, Xylodon jacobaeus on Eucalyptus camaldulensis. Chile, Colletotrichum arboricola on Fuchsia magellanica. Costa Rica, Lasiosphaeria miniovina ontreebranch. Ecuador, Ganoderma chocoense ontreetrunk. France, Neofitzroyomyces nerii (incl. Neofitzroyomyces gen. nov.) on Nerium oleander. Ghana, Castanediella tereticornis on Eucalyptus tereticornis, Falcocladium africanum on Eucalyptus brassiana, Rachicladosporium corymbiae on Corymbia citriodora. Hungary, Entoloma silvae-frondosae in Carpinus betulus-Pinus sylvestris mixedforest. Iran, Pseudopyricularia persiana on Cyperus sp. Italy, Inocybe roseascens onsoilinmixedforest. Laos, Ophiocordyceps houaynhangensis on Coleoptera larva. Malaysia, Monilochaetes melastomae on Melastoma sp. Mexico, Absidia terrestris fromsoil. Netherlands, Acaulium pannemaniae, Conioscypha boutwelliae, Fusicolla septimanifiniscientiae, Gibellulopsis simonii, Lasionectria hilhorstii, Lectera nordwiniana, Leptodiscella rintelii, Parasarocladium debruynii and Sarocladium dejongiae (incl. Sarocladiaceae fam. nov.) fromsoil. New Zealand, Gnomoniopsis rosae on Rosa sp. and Neodevriesia metrosideri on Metrosideros sp. Puerto Rico, Neodevriesia coccolobae on Coccoloba uvifera, Neodevriesia tabebuiae and Alfaria tabebuiae on Tabebuia chrysantha . Russia, Amanita paludosa on bogged soil in mixed deciduous forest, Entoloma tiliae in forest of Tilia × europaea, Kwoniella endophytica on Pyrus communis., South Africa, Coniella diospyri on Diospyros mespiliformis, Neomelanconiella combreti (incl. Neomelanconiellaceae fam. nov. and Neomelanconiella gen. nov.)on Combretum sp., Polyphialoseptoria natalensis on unidentified plant host, Pseudorobillarda bolusanthi on Bolusanthus speciosus, Thelonectria pelargonii on Pelargonium sp. Spain, Vermiculariopsiella lauracearum and Anungitopsis lauri on Laurus novocanariensis, Geosmithia xerotolerans from a darkened wall of a house, Pseudopenidiella gallaica on leaf litter. Thailand, Corynespora thailandica on wood, Lareunionomyces loeiensis on leaf litter, Neocochlearomyces chromolaenae (incl. Neocochlearomyces gen. nov.) on Chromolaena odorata, Neomyrmecridium septatum (incl. Neomyrmecridium gen. nov .), Pararamichloridium caricicola on Carex sp., Xenodactylaria thailandica (incl. Xenodactylariaceae fam. nov. and Xenodactylaria gen. nov.), Neomyrmecridium asiaticum and Cymostachys thailandica fromunidentifiedvine. USA, Carolinigaster bonitoi (incl. Carolinigaster gen. nov.)fromsoil, Penicillium fortuitum from house dust, Phaeotheca shathenatiana (incl. Phaeothecaceae fam. nov.) from twig and cone litter, Pythium wohlseniorum from stream water, Superstratomyces tardicrescens from human eye, Talaromyces iowaense from officeair. Vietnam, Fistulinella olivaceoalba onsoil. Morphological and culture characteristics along with DNA barcodes are provided Novel species of fungi described in this study include those from various countries as follows: Angola, Gnomoniopsis angolensis and Pseudopithomyces angolensis on unknown host plants. Australia, Dothiora corymbiae on Corymbia citriodora, Neoeucasphaeria eucalypti (incl. Neoeucasphaeria gen. nov.)on Eucalyptus sp., Fumagopsis stellae on Eucalyptus sp., Fusculina eucalyptorum (incl. Fusculinaceae fam. nov.) on Eucalyptus socialis, Harknessia corymbiicola on Corymbia maculata, Neocelosporium eucalypti (incl. Neocelosporium gen. nov., Neocelosporiaceae fam. nov. and Neocelosporiales ord. nov.) on Eucalyptus cyanophylla, Neophaeomoniella corymbiae on Corymbia citriodora, Neophaeomoniella eucalyptigena on Eucalyptus pilularis, Pseudoplagiostoma corymbiicola on Corymbia citriodora, Teratosphaeria gracilis on Eucalyptus gracilis, Zasmidium corymbiae on Corymbia citriodora. Brazil, Calonectria hemileiae on pustules of Hemileia vastatrix formed on leaves of Coffea arabica, Calvatia caatinguensis on soil, Cercospora solani-betacei on Solanum betaceum, Clathrus natalensis on soil, Diaporthe poincianellae on Poincianella pyramidalis, Geastrum piquiriunense on soil, Geosmithia carolliae on wing of Carollia perspicillata, Henningsia resupinata on wood, Penicillium guaibinense from soil, Periconia caespitosa from leaf litter, Pseudocercospora styracina on Styrax sp., Simplicillium filiforme as endophyte from Citrullus lanatus, Thozetella pindobacuensis on leaf litter, Xenosonderhenia coussapoae on Coussapoa floccosa., Canary Islands (Spain), Orbilia amarilla on Euphorbia canariensis. Cape Verde Islands, Xylodon jacobaeus on Eucalyptus camaldulensis. Chile, Colletotrichum arboricola on Fuchsia magellanica. Costa Rica, Lasiosphaeria miniovina ontreebranch. Ecuador, Ganoderma chocoense ontreetrunk. France, Neofitzroyomyces nerii (incl. Neofitzroyomyces gen. nov.) on Nerium oleander. Ghana, Castanediella tereticornis on Eucalyptus tereticornis, Falcocladium africanum on Eucalyptus brassiana, Rachicladosporium corymbiae on Corymbia citriodora. Hungary, Entoloma silvae-frondosae in Carpinus betulus-Pinus sylvestris mixedforest. Iran, Pseudopyricularia persiana on Cyperus sp. Italy, Inocybe roseascens onsoilinmixedforest. Laos, Ophiocordyceps houaynhangensis on Coleoptera larva. Malaysia, Monilochaetes melastomae on Melastoma sp. Mexico, Absidia terrestris fromsoil. Netherlands, Acaulium pannemaniae, Conioscypha boutwelliae, Fusicolla septimanifiniscientiae, Gibellulopsis simonii, Lasionectria hilhorstii, Lectera nordwiniana, Leptodiscella rintelii, Parasarocladium debruynii and Sarocladium dejongiae (incl. Sarocladiaceae fam. nov.) fromsoil. New Zealand, Gnomoniopsis rosae on Rosa sp. and Neodevriesia metrosideri on Metrosideros sp. Puerto Rico, Neodevriesia coccolobae on Coccoloba uvifera, Neodevriesia tabebuiae and Alfaria tabebuiae on Tabebuia chrysantha., Russia, Amanita paludosa on bogged soil in mixed deciduous forest, Entoloma tiliae in forest of Tilia × europaea, Kwoniella endophytica on Pyrus communis. South Africa, Coniella diospyri on Diospyros mespiliformis, Neomelanconiella combreti (incl. Neomelanconiellaceae fam. nov. and Neomelanconiella gen. nov.)on Combretum sp., Polyphialoseptoria natalensis on unidentified plant host, Pseudorobillarda bolusanthi on Bolusanthus speciosus, Thelonectria pelargonii on Pelargonium sp. Spain, Vermiculariopsiella lauracearum and Anungitopsis lauri on Laurus novocanariensis, Geosmithia xerotolerans from a darkened wall of a house, Pseudopenidiella gallaica on leaf litter. Thailand, Corynespora thailandica on wood, Lareunionomyces loeiensis on leaf litter, Neocochlearomyces chromolaenae (incl. Neocochlearomyces gen. nov.) on Chromolaena odorata, Neomyrmecridium septatum (incl. Neomyrmecridium gen. nov .), Pararamichloridium caricicola on Carex sp., Xenodactylaria thailandica (incl. Xenodactylariaceae fam. nov. and Xenodactylaria gen. nov.), Neomyrmecridium asiaticum and Cymostachys thailandica fromunidentifiedvine. USA, Carolinigaster bonitoi (incl. Carolinigaster gen. nov.)fromsoil, Penicillium fortuitum from house dust, Phaeotheca shathenatiana (incl. Phaeothecaceae fam. nov.) from twig and cone litter, Pythium wohlseniorum from stream water, Superstratomyces tardicrescens from human eye, Talaromyces iowaense from officeair. Vietnam, Fistulinella olivaceoalba onsoil. Morphological and culture characteristics along with DNA barcodes are provided., Tatiana M. Bulyonkova and colleagues are grateful to Dr Rodham Tulloss for his patient guidance and help, and to Dr Torbjørn Borgen Lindhardt for his invaluable advice. Thays G.L. Oliveira, Maria T.C. Felipe, Jadson D.P. Bezerra and Oliane M. C. Magalhães acknowledge financial support and/or scholarships from the CAPES (Finance Code 001), CNPq and FACEPE. Aline O.B. da Cunha, Alexandre R. Machado, Eder Barbier, Enrico Bernard and Cristina M. Souza-Motta acknowledge financial support and/or scholarships from the CAPES (Finance Code 001), CNPq, FACEPE, CECAV and ICMBio from Brazil. Rejane M.F. da Silva and colleagues express their gratitude to the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for a scholarship to Rejane M.F. da Silva and to the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for a research fellowships and/or financial support to Gladstone A. da Silva, Cristina M. Souza-Motta, José L. Bezerra and Rafael J.V. de Oliveira (Processes 458622/2014-1 and 312186/2016-9). Olinto L. Pereira, Vanessa P. Abreu, Jackeline P. Andrade and colleagues would like to thank the CNPq, CAPES and FAPEMIG for financial support. The study of Olga V. Morozova was carried out within the framework of a research project of the Komarov Botanical Institute RAS ‘Herbarium funds of the BIN RAS’ (АААА-А18-118022090078-2) with the support of the molecular work by the Russian Foundation for the Basic Research (project no. 15-29-02622). Anna M. Glushakova and Aleksey V. Kachalkin were supported by the Russian Foundation for Basic Research (RFBR), project no. 16-04-00624a. Janet Jennifer Luangsa-ard and colleagues were supported by ‘The Promotion Project on Science, Technology and Innovation Collaboration with ASEAN Member Countries under the Office of International Cooperation, MOSTThailand’. They would also like to thank Ms Duangkaew Chongkachornphong, Ms Papawee Nupason (International Cooperation Section, BIOTEC) and Ms Bakeo Souvannalath (Director of Biotechnology Division, Biotechnology and Ecology Institute, BEI) for their kind cooperation. Javier Fernández-López and colleagues are grateful to Marian Glenn for checking the text, and were supported by DGICT projects CGL2012-35559 and CGL2015-67459-P., Javier Fernández-López was also supported by Predoctoral Grants (BES- 2013-066429) from the Ministerio de Economía y Competitividad (Spain). Maria E. Ordoñez and colleagues acknowledge Pontificia Universidad Católica del Ecuador for financial support for project M13415. Taimy Cantillo is thankful to PEC-PG/CAPES for the PhD grant (proc. 12636134/2014) (Finance Code 001) and to the International Association for Plant Taxonomy (IAPT) for the Research Grant. Luis F.P. Gusmão is grateful to CNPq for Grant support (Proc. 303062/2014-2). Hugo Madrid was partially funded by Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT), Chile, project no. 11140562. Tor Erik Brandrud, Bálint Dima, Machiel E. Noordeloos and Egil Bendiksen thank the financial support of the Norwegian Taxonomy Initiative, with funding from the Norwegian Biodiversity Information Centre (NBIC), The Austrian Entoloma material (by Irmgard Krisai-Greilhuber) was sequenced within ABOL, subproject HRSFM University of Vienna, supported by the Austrian Federal Ministry of Education, Science and Research. Adriene M. Soares and colleagues would like to thank the Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) and the Instituto Brasileiro de Meio Ambiente (IBAMA) for support during field trips and R.L.M. Alvarenga for the figures. They also acknowledge CAPES for the Ph.D. scholarship of Adriene M. Soares, and CNPq (307601/2015-3), CAPES (CAPES-SIU 008/13), and FACEPE (APQ-0375-2.03/15) for financial support. Angus J. Carnegie acknowledges support from the Forestry Corporation of NSW, and David Sargeant for assistance with site photos. Adel Pordel and colleagues thank the University of Tehran for financial support. Luis Quijada acknowledges support from ‘Fundación Ramón Areces’. Robert W. Barreto and colleagues thank the World Coffee Research/Texas Agrilife for financial support, as well as the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). Sara Salcedo-Sarmiento was supported by the ‘Programa de Estudante-Convênio de Pós-Graduação’ (PEC-PG) from CAPES. The research of Cobus M. Visagie and Keith A. Seifert was supported by grants from the Alfred P. Sloan Foundation Program on the Microbiology of the Built Environment. Blaise A. Darvaux acknowledges Keith A. Seifert for help with identification, Nicholas Mauriello for validating the Latin name, Mauricia Lawrence and Meagan Tillotson for help with material preparation. We are grateful to Gavin Phillips, Seed Bank Officer, Australian Botanic Garden, Mt Annan for field assistance and identification of plant species collected in New South Wales, Australia. Collection of specimens from Mungo National Park was supported by the ABRS Bush Blitz program, a partnership between the Australian Government, BHP and Earthwatch Australia. The National Geographic Okavango Wilderness Project is acknowledged for assistance and funding to J. Roux for material collected in Angola.

Quijada L., Huhtinen S. & Beltran-Tejera E.: Studies in Hyaloscyphaceae associated with major vegetation types in the Canary Islands I: Cistella and Hyphodiscus. — Willdenowia 45: 131–146. 2015. — Version of record first published online on 27 March 2015 ahead of inclusion in April 2015 issue; ISSN 1868-6397; © 2015 BGBM Berlin-Dahlem. DOI: http://dx.doi.org/10.3372/wi.45.45114 A contribution to the knowledge of Cistella and Hyphodiscus in the Canary Islands is presented. Seven species are reported as new to the Canary Islands and to the Macaronesian Region: Cistella dentata, C. grevillei, C. mali, C. hungarica, C. pediformis, C. tenuicula and Hyphodiscus hymeniophilus. Descriptions and illustrations of these species based on our own observations and a key to the species currently known from the Canary Islands are provided. Closely related species are briefly discussed.

Knowledge of the relationships and thus the classification of fungi, has developed rapidly with increasingly widespread use of molecular techniques, over the past 10-15 years, and continues to accelerate. Several genera have been found to be polyphyletic, and their generic concepts have subsequently been emended. New names have thus been introduced for species which are phylogenetically distinct from the type species of particular genera. The ending of the separate naming of morphs of the same species in 2011, has also caused changes in fungal generic names. In order to facilitate access to all important changes, it was desirable to compile these in a single document. The present article provides a list of generic names of Ascomycota (approximately 6500 accepted names published to the end of 2016), including those which are lichen-forming. Notes and summaries of the changes since the last edition of ‘Ainsworth & Bisby’s Dictionary of the Fungi’ in 2008 are provided. The notes include the number of accepted species, classification, type species (with location of the type material), culture availability, life-styles, distribution, and selected publications that have appeared since 2008. This work is intended to provide the foundation for updating the ascomycete component of the “Without prejudice list of generic names of Fungi” published in 2013, which will be developed into a list of protected generic names. This will be subjected to the XIXth International Botanical Congress in Shenzhen in July 2017 agreeing to a modification in the rules relating to protected lists, and scrutiny by procedures determined by the Nomenclature Committee for Fungi (NCF). The previously invalidly published generic names Barriopsis, Collophora (as Collophorina), Cryomyces, Dematiopleospora, Heterospora (as Heterosporicola), Lithophila, Palmomyces (as Palmaria) and Saxomyces are validated, as are two previously invalid family names, Bartaliniaceae and Wiesneriomycetaceae. Four species of Lalaria, which were invalidly published are transferred to Taphrina and validated as new combinations. Catenomycopsis Tibell & Constant. is reduced under Chaenothecopsis Vain., while Dichomera Cooke is reduced under Botryosphaeria Ces. & De Not. (Art. 59)., Dayarathne would like to thank the Thailand Research Fund (TRF) grant no RSA5980068 entitled Biodiversity, phylogeny and role of fungal endophytes on above parts of Rhizophora apiculata and Nypa fruticans, National Research Council of Thailand (NRCT) entitled Diseases of mangrove trees and maintenance of good forestry practice (Grant number: 60201000201) and Mae Fah Luang University grant “Biodiversity, phylogeny and role of fungal endophytes of Pandanaceae” (Grant number: 592010200112). Hugo Madrid was funded by Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT), Chile, project no. 11140562.” Rafael F. Castañeda-Ruiz is grateful to the Organización Superior de Dirección Empresarial, Grupo Agrícola, (OSDE) from the Cuban Ministry of Agriculture and “Programa de Salud Animal y Vegetal”, project P131LH003033. Dong Qin Dai would like to thank the Key Laboratory of Yunnan Province Universities of the Diversity and Ecological Adaptive Evolution for Animals and plants on Yun-Gui Plateau for the support. Ka-Lai Pang thanks Ministry of Science and Technology, Taiwan for financial support (105-2621-B-019 -002-). Guo Zhu Zhao was funded by the National Natural Science Foundation of China (No. 31570019). Mingkwan Doilom acknowledges the Royal Golden Jubilee Ph.D. Program (PHD./0072/2553 in 4.S.M.F./53/A.2. K. Tanaka would like to thank the Japan Society for the Promotion of Science (JSPS; 26291084 and 16K07474). Walter P. Pfliegler was supported through the ÚNKP--16--4--IV New National Excellence Program of the Hungarian Ministry of Human Capacities. Samantha C. Karunarathna thanks Yunnan Provincial Department of Human Resources and Social Security funded postdoctoral project (number 179122) for supporting his postdoctoral research study. The authors extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP#0089. KC Rajeshkumar thanks SERB, DST, Government of India for providing financial support under the project YSS/2015/001590 and Dr. K. M. Paknikar, Director, ARI for providing the facility. Mats Wedin thanks the Swedish Research Council, grants VR 621-2012-3990 and VR 2016-03589. Alan JL Phillips acknowledges the support from Biosystems and Integrative Sciences Institute (BioISI, FCT/UID/ Multi/04046/2013). L. Selbmann, L. Zucconi and S. Onofri thank the Italian National Program for Antarctic Researches (PNRA) for the financial support. The Italian National Antarctic Museum (MNA) is acknowledged for supporting the Mycological Section and the Culture Collection of Fungi from Extreme Environments (CCFEE).

Orbilia beltraniae is a new succulenticolous species from the Canary Islands associated with Euphorbia scrubs. Phylogenetic analyses based on rDNA sequences of ITS and partial LSU were conducted to determine the relationships of the new species to others in the genus. Macro- and micromorphological, and ecology data are provided, as well as discussion in respect to closely related species. Orbilia beltraniae belongs to a strongly supported clade that includes non-nematophagous species of section Arthrobotrys, and its closest relatives are the European species O. rectispora and O. cotoneastri.

The genus Orbilia Fr. (Orbiliaceae Nannf.) was currently thought to comprise some dozens of species, being particularly common in temperate regions on woody substrates in moist habitats. During monographic work on the family Orbiliaceae over many years by the second author, species diversity turned out to be extremely higher, with presently about 330 species of Orbilia, and a strong preference of semihumid to arid, subtropical to tropical vegetation zones. The characterization of the genus and classification history of Orbiliaceae has been reviewed, e.g., in Liu et al. (2005) and Zhang et al. (2007, 2009).

An annotated catalogue of 66 taxa, collected in the early MAB Reserve El Canal y Los Tiles is presented. Among these taxa, 11 species are new for La Palma island and 5 are recorded for the first time in the Canary Islands. Taxonomic comments on some critical species and information about the distribution in the Macaronesian bioregion of all the studied taxa are given. Based on our previous publications, global data on biodiversity, substrates and distribution of the mycobiota in the different plant communities present in the sampled area are analyzed.Se presenta un estudio sobre 66 especies, pertenecientes a las divisiones Myxomycota (21), Ascomycota (29) y Basidiomycota (16), encontradas en la antigua Reserva de la Biosfera El Canal y Los Tiles. De ellas 11 se citan por primera vez para la isla de La Palma, siendo 5 de éstas nuevas para Canarias. Se hacen comentarios taxonómicos sobre algunos táxones conflictivos, además de amplia información sobre su distribución en la Región Macaronésica. En base a publicaciones propias anteriores, se aportan datos globales sobre biodiversidad, sustratos y distribución de la micobiota en las diferentes unidades ambientales presentes en el área de estudio.

Exposure of Leishmania promastigotes to the temperature of their mammalian hosts induces a typical heat-shock response. In Leishmania infantum, HSP70 is encoded by two types of genes that differ in their 3'-untranslated regions (3'-UTRs). Previously, we have shown that specific transcripts for each gene are present in promastigotes growing at normal temperature (26 degrees C), but only transcripts with 3'-UTR-type I (3'-UTRI) accumulate in a temperature-dependent manner. Here, we have investigated the translational efficiencies of both types of HSP70 transcripts at the different temperatures that the parasite encounters in the insect (26 degrees C, normal temperature) or in the mammalian host (heat-shock temperatures). Interestingly, 3'-UTRI-bearing transcripts (HSP70-I) were found associated with ribosomes in promastigotes at normal and heat-shock temperatures, whereas the HSP70-II transcripts appear to be preferentially translated at heat-shock temperatures but not at 26 degrees C. We have analyzed the function of these UTRs in the translational control by use of plasmid constructs in which the CAT reporter gene was flanked by UTRs of the HSP70 genes. Unexpectedly, it was found that CAT transcripts with 3'-UTRII bind to ribosomes at 26 degrees C, and, indeed, the CAT protein is synthesized. A valid conclusion of these experiments was that both types of 3'-UTRs are essential for translation of HSP70 mRNAs at heat shock temperatures, although the 3'-UTRII is more efficient during severe heat shock (39 degrees C). In addition, these results suggest that sequence region other than the 3'-UTR of HSP70-II gene is involved in the translational silent state of HSP70-II transcripts at 26 degrees C. Finally, a null mutant has been created by targeted disruption of both HSP70-II alleles. Remarkably, the deltaHSP70 mutant synthesizes HSP70 at a lower rate than the wild-type parasites. Overall, our data suggest that the biological function of the HSP70-II gene is to top up HSP70 levels under conditions of stress.

The cell-cycle-dependent expression of the four core histones (H2A, H2B, H3 and H4) has been studied in the protozoan parasite Leishmania infantum. For that purpose, the cell cycle was arrested by incubation of promastigotes with the DNA synthesis inhibitor hydroxyurea, which induced an accumulation of cells stalled in G1 phase. Hydroxyurea release resulted in a semi-synchronous entry into the cell cycle, as determined by flow cytometry. The steady-state levels of histone mRNAs in the G1, S and G2/M phases were found to be constant along the cell cycle. However, the levels of histone synthesis increased when parasites enter the S phase, in agreement with previous results showing that histone synthesis in Leishmania is tightly coupled with DNA replication. In addition, we analysed the distribution of histone mRNAs on polyribosomes at different stages of the cell cycle by separation of cytoplasmic RNAs in sucrose gradients. Remarkably, a drastic change in the polysome profiles of histone mRNAs was observed during the progression from G1 to S phase. Thus, in the S phase, histone mRNAs are present in ribosome-bound fractions, but in the G1 phase, the histone transcripts are exclusively found in the ribosome-free fractions. These results support a regulatory model in which the cell-cycle-regulated synthesis of histones in Leishmania is controlled through a reversible interaction between translational repressors and histone mRNAs, This work was supported by Grant BMC2002-04107-C02-01 from Ministerio de Ciencia y Tecnología of Spain. Also, an institutional grant from Fundación Ramón Areces is acknowledged

We have studied the genomic organization and transcription of the histone H2A genes in the protozoan parasite Leishmania infantum. In the parasite genome 2 gene clusters exist, each containing 3 H2A gene copies. Sequence analyses showed the existence of significant sequence divergence among the H2A genes, mainly in their 5'- and 3'-untranslated regions (UTRs). Also, the existence of allelic alternatives has been evidenced. Based on the divergence in the 3'UTR regions, we have defined 3 classes of H2A transcripts, which are present at different levels in L. infantum promastigotes. However, transcription of the 3 classes of H2A genes occurs at similar levels, as measured by nuclear run-on assays, indicating that their abundance is regulated post-transcriptionally. Also, differences in regulation were observed among the H2A transcripts: the levels of transcripts with 3'-UTR type I and type III are affected by growth phase whereas transcripts with 3'-UTR type II, that are barely detected, remain constant. It is likely that the complexity, in both gene organization and differential expression exhibited by the L. infantum H2A genes, is imposed by the nature of the post-transcriptional mechanisms of regulation operating in this parasite.