Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2016-01-14
Page range: 201–234
Abstract views: 40
PDF downloaded: 1

Taxonomic revision of Wissadula (Malvoideae, Malvaceae) in Brazil

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas. Rua Pacheco Leão 915, CEP 22460-030, Rio de Janeiro, Brazil.
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas. Rua Pacheco Leão 915, CEP 22460-030, Rio de Janeiro, Brazil.
Neotropics South America taxonomy typification Eudicots Brazil

Abstract

A comprehensive taxonomic revision of the genus Wissadula (Malvoideae, Malvaceae) in Brazil is presented. Through field surveys, examination of the specimens maintained in 39 herbaria, and a review of the literature, 19 Wissadula species are recognized. The main diagnostic characteristics used to distinguish amonth species are leaf shape, trichome type on branches and leaves, and the shape and number of mericarps. Wissadula mainly differs from the other genera in Malvoideae in having a mericarp constriction. A diagnostic key, detailed descriptions, illustrations, and geographic data are provided. Three species (W. boliviana, W. wissadifolia, and W. setifera) are recorded for the first time in Brazil. New synonyms and the typification of some names are also proposed, including for the Wissadula section Wissadula. Seven species are illustrated for the first time. Phytogeographic data suggest a neotropical distribution for this genus, with high species diversity in Paraguay, northern Argentina, eastern Bolivia, and western Brazil.