ABSTRACT
Eight species of Stylogyne occur in Rio de Janeiro state, S. depauperata Mez, S. lhotzkiana, S. sellowiana and S. sordida being endemics. The pistillate flowers of S. lhotzkiana and the bisexual ones of S. sellowiana are described for the first time. Five species are illustrated for the first time. Identification key, and commentaries about affinities, distribution and ecology of the species are provided. In Rio de Janeiro state, the Serra do Mar presents the greatest diversity of Stylogyne species, in which the Serra dos Órgãos and Tinguá groups of mountains show the larger number of taxa.
Key words:
flora; taxonomy; Serra do Mar; Pluvial Atlantic Forest