Pilotrichaceae is represented in Rio de Janeiro State by 35 species and 11 genera. This work is part of a larger study on the family in the state, and presents a taxonomic treatment of 18 species in the genera Brymela Crosby & B.H. Allen, Callicostella (Müll. Hal.) Mitt., Crossomitrium Müll. Hal., Cyclodictyon Mitt., Hookeriopsis (Besch.) A. Jaeger, Hypnella (Müll. Hal.) A. Jaeger and Trachyxiphium W.R. Buck. Descriptions, illustrations, comments, distribution, and conservation status for each species are presented.
bryophytes; pleurocarpic mosses; taxonomy; Atlantic rain forest
