| Abstract Detail
Solanum Taxonomy - Morning Agra, Maria de Fátima [1]. Diversity and Distribution of Solanum Subgenus Leptostemonum in Brazil. BRAZIL is South America's biggest country and takes up almost half the continent with an area about 8,55 million sq km. It also has the highest plant diversity having about 60,000 species of Angiosperms. Solanum subgenus Leptostemonum is the second largest of the genus having about 450 species with cosmopolitan distribution. This subgenus has its primary center of diversity in South America and secondary centers in Australia and Africa. Morphological characters used to distinguish it from other subgenera include: stellate indument, prickly herbage, and attenuate anthers. In Brazil approximately 251 specific names have been applied to the species of subgenus Leptostemonum, of which, 120 are accepted and 131 are recognized as synonyms. Of these, about 50 species are endemic, including the undescribed taxa. They are assigned to the sections Acanthophora, Asterophorum, Crinitum, Melongena, Erythrotrichum, Lasiocarpum, Micracanthum, Polytrichum and Torvum, inter alia. They are encountered in many kinds of vegetation and display marked adaptations to humid, dry, hot and seasonal habitats. The principal center of diversity and endemism of the subgenus Leptostemonum in Brazil is found in South eastern coastal region, which has 67 species, representing 61% of the total, of which, about twenty two are endemic to the area. Financial support: CNPq.
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1 - Universidade Federal da Paraíba, Laboratório de Tecnologia Farmacêutica, Cidade Universitária, Campus I, Caixa Postal 5009, João Pessoa, Paraíba, 58051-970, Brazil
Keywords:
Solanum subgenus Leptostemonum
Brazil
Floristic
South America.
Session: Poster-75
Location: Ballroom CD/Monona Terrace
Date: Tuesday, July 25th, 2006
Time: 8:00 AM
Abstract ID:418 |
