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Additional file 1: Fig. S1. RNA mapping to confirm the single nucleotide deletion in the H. moniliformis MAT1-2-7. Fig. S2. The structure of the Huntiella a-factor pheromone proteins and the sequence of the putative mature repeats. Fig. S3. An alignment of the a1 a-factor pheromone factor genes from all eight Huntiella species considered in this study. Fig. S4. RNA mapping to confirm in frame stop codons in the a1 and a6 a-factor pheromone factor genes from the unisexual H. moniliformis. Fig. S5. An alignment of the a3 a-factor pheromone from all eight Huntiella species considered in this study. Fig. S6. RNA mapping to determine expression of the multiple a-factor pheromone genes from H. abstrusa. Fig. S7. RNA mapping to determine expression of the multiple a-factor pheromone genes from H. omanensis. Fig. S8. RNA mapping to determine expression of the multiple a-factor pheromone genes from H. moniliformis. Fig. S9. The structure of the Huntiella α-factor pheromones from the various Huntiella species along with the sequences of the putative mature repeats.

Grosmannia alacris is a fungus commonly associated with root‐infesting bark beetles occurring on Pinus spp. The fungus has been recorded in South Africa, the USA, France, Portugal and Spain and importantly, has been associated with pine root diseases in South Africa and the USA. Nothing is known regarding the population genetics or origin of G. alacris, although its association with root‐infesting beetles native to Europe suggests that it is an invasive alien in South Africa. In this study, microsatellite markers together with newly developed mating type markers were used to characterize a total of 170 isolates of G. alacris from South Africa and the USA. The results showed that the genotypic diversity of the South African population of G. alacris was very high when compared to the USA populations. Two mating types were also present in South African isolates and the MAT1‐1/MAT1‐2 ratio did not differ from 1:1 (χ2 = 1·39, P = 0·24). This suggests that sexual reproduction most probably occurs in the fungus in South Africa, although a sexual state has never been seen in nature. In contrast, the large collection of USA isolates harboured only a single mating type. The results suggest that multiple introductions, followed by random mating, have influenced the population structure in South Africa. In contrast, limited introductions of probably a single mating type (MAT1‐2) may best explain the clonality of USA populations.

Nel, Wilma J., Beer, Z. Wilhelm De, Wingfield, Michael J., Duong, Tuan A. (2020): The granulate ambrosia beetle, Xylosandrus crassiusculus (Coleoptera Curculionidae, Scolytinae), and its fungal symbiont found in South Africa. Zootaxa 4838 (3): 427-435, DOI: https://doi.org/10.11646/zootaxa.4838.3.7

Novel species of fungi described in this study include those from various countries as follows: Australia, Chaetopsina eucalypti on Eucalyptus leaf litter, Colletotrichum cobbittiense from Cordyline stricta × C. australis hybrid, Cyanodermella banksiae on Banksia ericifolia subsp. macrantha, Discosia macrozamiae on Macrozamia miquelii, Elsinoë banksiigena on Banksia marginata, Elsinoë elaeocarpi on Elaeocarpus sp., Elsinoë leucopogonis on Leucopogon sp., Helminthosporium livistonae on Livistona australis, Idriellomyces eucalypti (incl. Idriellomyces gen. nov.) on Eucalyptus obliqua, Lareunionomyces eucalypti on Eucalyptus sp., Myrotheciomyces corymbiae (incl. Myrotheciomyces gen. nov., Myrotheciomycetaceae fam. nov.), Neolauriomyces eucalypti (incl. Neolauriomyces gen. nov., Neolauriomycetaceae fam. nov.) on Eucalyptus sp., Nullicamyces eucalypti (incl. Nullicamyces gen. nov.) on Eucalyptus leaf litter, Oidiodendron eucalypti on Eucalyptus maidenii, Paracladophialophora cyperacearum (incl. Paracladophialophoraceae fam. nov.) and Periconia cyperacearum on leaves of Cyperaceae, Porodiplodia livistonae (incl. Porodiplodia gen. nov., Porodiplodiaceae fam. nov.) on Livistona australis, Sporidesmium melaleucae (incl. Sporidesmiales ord. nov.) on Melaleuca sp., Teratosphaeria sieberi on Eucalyptus sieberi, Thecaphora australiensis in capsules of a variant of Oxalis exilis. Brazil, Aspergillus serratalhadensis from soil, Diaporthe pseudoinconspicua from Poincianella pyramidalis, Fomitiporella pertenuis on dead wood, Geastrum magnosporum on soil, Marquesius aquaticus (incl. Marquesius gen. nov.) from submerged decaying twig and leaves of unidentified plant, Mastigosporella pigmentata from leaves of Qualea parviflorae, Mucor souzae from soil, Mycocalia aquaphila on decaying wood from tidal detritus, Preussia citrullina as endophyte from leaves of Citrullus lanatus, Queiroziella brasiliensis (incl. Queiroziella gen. nov.) as epiphytic yeast on leaves of Portea leptantha, Quixadomyces cearensis (incl. Quixadomyces gen. nov.) on decaying bark, Xylophallus clavatus on rotten wood., Canada, Didymella cari on Carum carvi and Coriandrum sativum. Chile, Araucasphaeria foliorum (incl. Araucasphaeria gen. nov.) on Araucaria araucana, Aspergillus tumidus from soil, Lomentospora valparaisensis from soil. Colombia, Corynespora pseudocassiicola on Byrsonima sp., Eucalyptostroma eucalyptorum on Eucalyptus pellita, Neometulocladosporiella eucalypti (incl. Neometulocladosporiella gen. nov.) on Eucalyptus grandis × urophylla, Tracylla eucalypti (incl. Tracyllaceae fam. nov., Tracyllalales ord. nov.) on Eucalyptus urophylla. Cyprus, Gyromitra anthracobia (incl. Gyromitra subg. Pseudoverpa) on burned soil. Czech Republic, Lecanicillium restrictum from the surface of the wooden barrel, Lecanicillium testudineum from scales of Trachemys scripta elegans. Ecuador, Entoloma yanacolor and Saproamanita quitensis on soil. France, Lentithecium carbonneanum from submerged decorticated Populus branch. Hungary, Pleuromyces hungaricus (incl. Pleuromyces gen. nov.) from a large Fagus sylvatica log. Iran, Zymoseptoria crescenta on Aegilops triuncialis. Malaysia, Ochroconis musicola on Musa sp. Mexico, Cladosporium michoacanense from soil. New Zealand , Acrodontium metrosideri on Metrosideros excelsa, Polynema podocarpi on Podocarpus totara, Pseudoarthrographis phlogis (incl. Pseudoarthrographis gen. nov.) on Phlox subulata. Nigeria, Coprinopsis afrocinerea on soil. Pakistan, Russula mansehraensis on soil under Pinus roxburghii. Russia, Baorangia alexandri on soil in deciduous forests with Quercus mongolica. South Africa, Didymocyrtis brachylaenae on Brachylaena discolor. Spain, Alfaria dactylis from fruit of Phoenix dactylifera, Dothiora infuscans from a blackened wall, Exophiala nidicola from the nest of an unidentified bird, Matsushimaea monilioides from soil, Terfezia morenoi on soil. United Arab Emirates, Tirmania honrubiae on soil. USA, Arxotrichum wyomingense (incl. Arxotrichum gen. nov.) from soil, Hongkongmyces snookiorum from submerged detritus from a fresh water fen, Leratiomyces tesquorum from soil, Talaromyces tabacinus on leaves of Nicotiana tabacum. Vietnam, Afroboletus vietnamensis on soil in an evergreen tropical forest, Colletotrichum condaoense from Ipomoea pes-caprae. Morphological and culture characteristics along with DNA barcodes are provided., The study of Olga V. Morozova and Tatiana Yu. Svetasheva was carried out within the framework of an institutional research project of the Komarov Botanical Institute RAS ‘Biodiversity and spatial structure of fungi and myxomycetes communities in natural and anthropogenic ecosystems’ (АААА-А18-118031290108-6) using equipment of its Core Facility Center ‘Cell and Molecular Technologies in Plant Science’. Alina V. Alexandrova acknowledges financial support from the Russian Science Foundation (project N 14-50-00029)., Daniela de A. Viana Marques acknowledges Universidade de Pernambuco for financial support. Jan Borovička is thanked for providing the Portuguese collection of Baorangia emileorum and its ITS and LSU sequences, and Alessia Tatti for sending the Sardinian collections of B. emileorum. Taimy Cantillo, Luis F.P. Gusmão, Luana T. do Carmo, Lucas B. Conceição, Julieth O. Sousa, Luiz F. de Oliveira, Renan N. Barbosa, Rhudson H.S.F. Cruz, André L.C.M. de A. Santiago, Carlos A.F. de Souza, Diogo X. Lima, Rafael J.V. de Oliveira and Thalline R.L. Cordeiro, Olinto L. Pereira, Rejane M.F. Silva, Rafael J.V. Oliveira, José L. Bezerra, Gladstone A. Silva Ciro R. Félix, Melissa F. Landell, Thays G.L. Oliveira, Jadson D.P. Bezerra, Alexandre R. Machado, Cristina M. Souza-Motta and Oliane M. C. Magalhães, Tatiana B. Gibertoni, Vitor Xavier de Lima and José R. C. Oliveira-Filho acknowledge financial support and/or scholarships from the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), the Conselho Nacional do Desenvolvimento Científico e Tecnológico (CNPq) and the Fundação de Amparo à Ciência e Tecnologia de Pernambuco (FACEPE); the Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), the Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), Parque Memorial Zumbi dos Palmares and Usina Caeté – Grupo Carlos Lyra and Nordesta AS for suport during field trips., Maria E. Ordoñez and colleagues acknowledge the Secretaria de Educación Superior, Ciencia, Tecnología e Innovación del Ecuador (SENESCYT), Arca de Noé Initiative, and the Pontificia Universidad Católica del Ecuador, project N13415 for financial support. 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. Vit Hubka and colleagues express their gratitude to Marek Kiecoň, Pavel Malík and Tereza Krasnokutská (National Heritage Institute) for providing information on archaeological research; Hana Rajhelová (Silesian University in Opava) and Jitka Koubková (Veterinary Laboratory Labvet) for providing photo documentation and material for mycological examinations; Czechoslovak Microscopy Society for support (CSMS scholarship 2016). The research of V. Hubka was supported by Charles University Research Centre program No. 204069 and the grant of the Czech Ministry of Health (AZV 17-31269A). Alfredo Vizzini and colleagues thank Jan Holec for administering of the loan of European material from PRM herbarium (Prague, Czech Republic). Soňa Jančovičová helped with the line drawings. Jozef Šibík and David Cooper are acknowledged for the support during the field collections in Colorado (USA) that was financed by the Slovak American Foundation., The sequencing of samples was funded by the Slovak national project Vega 02/0018/18. Željko Jurjević acknowledges Filomena Epifani and Sammy Sedky for their excellent technical support. Malka Saba acknowledges the Higher Education Commission (HEC), Islamabad, Pakistan, for financial assistance during field trips in Pakistan and the Slovak national project APVV-15-0210 for sequencing of Russula mansehraensis. The research of Alena Nováková and Miroslav Kolařík was supported by the Ministry of Education, Youth and Sports of the Czech Republic (grant number LO1509). Asunción Morte, Juan Julián Bordallo and Antonio Rodríguez were supported by projects 19484/PI/14 (FEDER and Fundación Séneca - Agencia de Ciencia y Tecnología de la Región de Murcia, Spain) and CGL2016-78946-R (AEI and FEDER, UE); they also thank Aurelio Garcia Blanco, Andries Gouws, Tom de Wet, Ali Hassan and Faisal Abdullab for their observations and assistance with field work. Daniel B. Raudabaugh and colleagues thank the Commonwealth of Pennsylvania, Pennsylvania Department of Conservation and Natural Resources, Pennsylvania Bureau of State Parks, and Black Moshannon State Park for research support, the Mycological Society of America and University of Illinois Urbana-Champaign School of Integrative Biology for financial support, and Michael Woodley for field support. Cheryl Armstrong-Cho and Sabine Banniza acknowledge funding and support by the Saskatchewan Ministry of Agriculture, the Western Grains Research Foundation, the Herb, Spice and Specialty Agriculture Association and the Saskatchewan Crop Insurance Corporation. Shuming Luo and colleagues thank Mui-keng Tan for helpful advice during this study.

The genus Caliciopsis (Eurotiomycetes, Coryneliales) includes saprobic and plant pathogenic species. Caliciopsis canker is caused by Caliciopsis pinea Peck, a species first reported in the 19th century in North America. In recent years, increasing numbers of outbreaks of Caliciopsis canker have been reported on different Pinus spp. in the eastern USA. In Europe, the disease has only occasionally been reported causing cankers, mostly on Pinus radiata in stressed plantations. The aim of this study was to clarify the taxonomy of Caliciopsis specimens collected from infected Pinus spp. in Europe and North America using an integrative approach, combining morphology and phylogenetic analyses of three loci. The pathogenicity of the fungus was also considered. Two distinct groups were evident, based on morphology and multilocus phylogenetic analyses. These represent the known pathogen Caliciopsis pinea that occurs in North America and a morphologically similar, but phylogenetically distinct, species described here as Caliciopsis moriondisp. nov., found in Europe and at least one location in eastern North America. Caliciopsis moriondi differs from C. pinea in various morphological features including the length of the ascomata, as well as their distribution on the stromata.