Abstract
The Rio das Pedras Reserve is located in southern Rio de Janeiro state and represents a fragment of the Atlantic rain forest, with about 1,360 ha. A morphological and taxonomic study of the Malvaceae s. str. was carried out, registering 13 species belonging to six genera (Abutilon, Malvastrum, Pavonia, Sida, Sidastrum and Urena), with Sida the most frequent. A key for identification, descriptions and illustrations of the species are presented.
Key words:
floristic; Rio de Janeiro; taxonomy