Abstract
Axonopus P. Beauv. is an American genus with ca. 72 species, mainly distributed in northern South America, with some species apparently introduced in the Old World. Three new synonyms of Axonopus are proposed for Brazil (A. villosus Swallen, A. obtusifolius (Raddi) Chase, and A. pellitus (Nees ex Trin.) Hitchc. & Chase). Additionally, the name Axonopus kuhlmannii G.A.Black, endemic to Brazil, is accepted as distinct species. Ecological and geographical distribution plus comments on particular features are provided for the four species treated in the present study.
Key words:
Flora of Brazil; grasses; Neotropics; taxonomy