Duas novas espécies de Paspalum L. (Poaceae: Paniceae) do Brasil

Abstract

-(Two new species of Paspalum L. (Poaceae: Paniceae) from Brazil). Two new species of Paspalum L. belonging to the informal group Plicatula are described and illustrated. Paspalum laurentii L., from Rio Grande do Sul, southern Brazil, is mainly recognized by the long trichomes on the margins of the rachis and pedicel. Paspalum longipedicellatum L., from Mato Grosso do Sul, west-central Brazil, is flabellate at the base, with short rhizomes covered by velvety cataphylls, the trichomes yellowish, and it has long spikelet pedicels, specially in the proximal portion of each raceme.

Harnessing apomictic reproduction in grasses: what we have learned from Paspalum

“…Botany, phylogeny and evolution Paspalum (Linnaeus, 1759) is one of the ten largest genera within Poaceae. Recent systematic works have expanded the genus, including species of the genus Thrasya (Denham, 2005), and new taxa have been described (Oliveira and Rua, 2005;Rua et al, 2008;Oliveira and Valls, 2009;Sánchez-Ken, 2010;Ramos et al, 2011). In addition, several species have been transferred to Paspalum from the polyphyletic genus Panicum (Morrone et al, 2007(Morrone et al, , 2008Zuloaga et al, 2007Zuloaga et al, , 2010Zuloaga et al, , 2011Sede et al, 2008Sede et al, , 2009.…”