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As part of a study on the flora and vegetation from different localities in the phytogeographic province of the Yungas, we record and illustrate seven species that have not been previously reported for the Province of Jujuy (Argentina): Vallea stipularis (Elaeocarpaceae), Escallonia schreiteri (Escalloniaceae), Cyclopogon congestus, Rhinocidium fuchsii, Sacoila secundiflora (Orchidaceae), Campyloneurum angustipaleatum (Polypodiaceae) and Adiantum camptorachis (Pteridaceae). [ABSTRACT FROM AUTHOR]

This paper discusses the role played by Petalostelma robertii (S. Moore) Liede & Meve (Apocynaceae) in the ethnobotany of two ethnic groups from the Argentine semi-arid Chaco: the Wichí and the Toba-Pilagá peoples, who use it as a love spell. It provides data on the morphology, ecology and geographical distribution of the plant, as well as references on its significance in the social and spiritual lives of these ethnic groups. Its presence in Argentina is mentioned for the first time, and the morphological similarities and discrepancies in the collections made in different localities in the region are discussed. The provisional nature of the identity given to the plant is categorically stated. Its ethnobotanical interest and the need to assign a scientific name to the plant, at least an approximate one, are discussed. On the taxonomic and floral levels, the conclusion is that a detailed study of the exsiccata available is required in order to clarify the identity of a group of plants related to P. robertii. [ABSTRACT FROM AUTHOR]

A new generic and specific record for the Argentinean Flora, Allamanda schottii Pohl (Apocynaceae), is documented. The species was found on the banks of the Paraná River, in north of Corrientes, Argentina. Synonymy, description, distribution, habitat, phenology, reproductive biology, common names, uses and observations are included. [ABSTRACT FROM AUTHOR]

Urena Pedersenii, a new species from Goiás, Brazil, is described. [ABSTRACT FROM AUTHOR]

This paper includes four ornamental species of the genus Bryophyllum (Crassulaceae): B. daigremontianum (Raym.-Hamet & H.Perrier) A.Berger, B. delagoense (Eckl. & Zeyh.) Schinz, B. fedtschenkoi(Raym.-Hamet& H.Perrier) Lauz.-March. and B. pinnatum (Lam.) Oken, all naturalized in Argentina. The first three are new records for this country; for B. pinnatum, cited previously, its area is extended. Also includes an identification key, descriptions, distribution, ethnobotanical data, reference material and comments on their naturalization. [ABSTRACT FROM AUTHOR]

Cyrtopodium paniculatum (Ruiz & Pav.) Garay is described for the first time for the Argentine flora. Synonyms, some ecological observations and the key to distinguish it from related species are included. Besides, the identity of other species previously recognized for Argentina, C. pflanzii, is clarified. [ABSTRACT FROM AUTHOR]

Tillandsia myosura (Bromeliaceae), new report for the Province of Buenos Aires, Argentina. Collected near Pereyra River, Provincial Park and Biosphere Reserve Parque Pereyra Iraola (Berazategui, Buenos Aires, Argentina). This species, known so far only for southern Uruguay and Catamarca, Cordoba, Jujuy, La Rioja, La Pampa, Mendoza, Salta, San Juan, San Luis, Santiago del Estero and Tucuman in Argentina, is cited for the first time the Province of Buenos Aires, expanding its southern limit of distribution in the country. A description and illustration along with a key to differentiate it from related species is given. [ABSTRACT FROM AUTHOR]

The new species Sida chiquitana (Cordifoliae), S. parva (Distichifolia), S. cavernicola, S. Glocimari (Malacroidea), S. cabraliana, S. rhizomatosa, S. sucupirana (Muticae), S. japiana and S. Lilianae (Nelavaga) are described. [ABSTRACT FROM AUTHOR]

Five species of Pavonia are described: P. boisiana, P. botumirima, P. Queirozii, P. teresina from Brasil and P. undulata from Bolivia. [ABSTRACT FROM AUTHOR]

A transcription and a critical review on Aimé Bonpland´s scarcely known manuscripts dealing with the geographical distribution of wild "yerba mate" (Ilex paraguariensis A. St. Hil., Aquifoliaceae) trees in South America is presented here. Among other data, Bonpland´s assumptions on the occurrence of wild "yerba mate" individuals within present day Uruguayan boundaries are matched with modern voucher specimens of this species collected in Uruguay, and also with miscellaneous bibliographical sources, including details from later reports from Bonpland himself, and also from other contemporary naturalists who travelled through this country in the 1820´s and 1830´s, as well as with phytogeographical information. As a conclusion, it is supposed that these Bonpland´s notes, written during his early years of residence at the Río de La Plata basin, contain mistaken information that the same botanist did not report again, as his knowledge of the Argentinian Delta, the Uruguayan environment and the 'yerba mate" got deeper. [ABSTRACT FROM AUTHOR]

This paper includes nine adventitious species of Prunus (Rosaceae, Prunoideae) present in Argentina. A key is presented to differentiate them. For all the species, it is indicated scientific name, common names, description, geographical distribution, uses, material studied and observations about their status of naturalization. [ABSTRACT FROM AUTHOR]

This paper includes the first record of Carya illinoinensis (Wangenh.) K. Koch for Argentina, and considerations about its status in the context of the naturalization process. Also includes observations about exotic species of Juglans in this country. [ABSTRACT FROM AUTHOR]

Six new species of Malvastrum are described: M. boyuibeanum, M. Cristobalianum, M. ionthacarpum, M. pucariensis, M. trifidum and M. uniapiculatum and a new combination is proposed: M. Fryxellii. [ABSTRACT FROM AUTHOR]

Oncidium fuchsii Königer (Orchidaceae) is described for the first time for the Argentinean flora. Synonyms, some ecological observations and a key to differentiate the entity with which can made a mistake, are included. [ABSTRACT FROM AUTHOR]

In this paper Stemodia hassleriana Chodat (Plantaginaceae) is reported for the first time for Brazil. Description, illustration, ecological observations of the species and a key to species of Stemodia presently known from Brazil are included. [ABSTRACT FROM AUTHOR]

A new record for argentinian flora, Aristolochia stomachoides Hoehne (Aristolochiaceae) from Misiones province is described and illustrated. Ecological information is given. Its distribution along Paraná River suggests the action of the water as agent of dispersion. [ABSTRACT FROM AUTHOR]

Mentzelia aspera L. is cited for the first time for the Paraguayan flora; this is the first record for the genus Mentzelia and the second for the family Loasaceae from Paraguay. To facilitate identification, a description of the species and some images of diagnostic features are included. [ABSTRACT FROM AUTHOR]

Bolivia is regarded as the probable place of origin of the domesticated peanut, and an important world center of unique peanut diversity. As the first published study of its kind on peanut, this paper documents the infraspecific diversity of the crop in its country of origin and center of diverstity. 62 distinct landraces of Bolivian peanut were identified and systematically described. 42 landraces belong to Arachis hypogaea L. ssp. hypogaea var. hypogaea; 17 to A. hypogaea ssp. fastigiata var. fastigiata; one to A. hypogaea ssp. fastigiata var. vulgaris; and two to A. hypogaea ssp. fastigiata var. peruviana. With very few exceptions, the landraces encountered in Bolivia are almost entirely endemic to that country. The most typical peanuts from Bolivia pertain to the landraces "Crema", "Colorado San Simón", "Bayo americano", "Overo", and "Overo carenado", which are widely cultivated throughout the country. A few regions of unusually high peanut diversity can be identified. In the Yungas region of La Paz, 11 landraces were collected, of which three are endemic. In the mountainous regions of Santa Cruz and Cochabamba, 18 landraces were collected, of which six are endemic. The Department of Tarija yielded 14 landraces, of which two are endemic. All of the aforementioned landraces pertain to the botanical variety hypogaea. In contrast, the subspecies fastigiata has a remarkable center or diversity in the watershed of the Rio Beni, where 10 landraces were collected in a fairly small area, nine of which are endemic to that region. This monograph is intended to enhance the knowledge and appreciation of peanut diversity, and facilitate the conservation and use of peanut landraces by scientistis, plant breeders, and farmers [ABSTRACT FROM AUTHOR]

In this paper we provide new data on the distribution of two species of Poaceae in the Buenos Aires province, Argentina. [ABSTRACT FROM AUTHOR]

Woodianthus new genus and W. Sotoi, new species from Santa Cruz, Bolivia, are described, A key is included to show the position of the new genus among the tribes of the family. [ABSTRACT FROM AUTHOR]