Abstract
Calymperes levyanum Besch., C. platyloma Mitt., C. bartramii Reese, and C. mitrafugax Florschütz are reported new to Brazil; Syrrhopodon incompletus var. luridus (Par. & Broth.) Florschütz, S. circinatus (Brid.) Mitt., and S. brevisetus Florschütz are reported new to Brazil, and S. berteroanus (Brid.) C. Müll, is reported new to Venezuela. The occurrence and distribution of several other Calymperaceae in Brazil are also discussed. Syrrhopodon rivularis Herzog is a new synonym of Calymperes nicaraguense Ren. & Card.