Abstract
Abstract Four new Brazilian species from the genus Paspalum are described and illustrated:P. phaeotrichum, P. vexillarium, P. veredense, and P. clipeum Paspalum phaeotrichum is an annual with no obvious affinity to any known species of Paspalum, although it shares several characters with species of both P. subg. Ceresia and the ‘Bertoniana’ group. Paspalum vexillarium is presumably related to P. ceresia, with which it has been confused. Paspalum veredense shows affinities with both P. ellipticum and P. erianthoides. Paspalum clipeum is probably related to annual species of the ‘Plicatula’ group, although it lacks the dark brown upper florets typical of that group. Moreover, P. spissum, a species currently considered as a synonym under P. carinatum, is recognized on the basis of vegetative morphology, phenology and habitat. Keys to the treated species are provided when relevant, as well as a distribution map. Resumo—Quatro novas especies de Paspalum do Brasil sao descritas e ilustradas:P. phaeotrichum, P. ...
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