Revisión Taxonómica de las Especies del Género Schizachyrium (Poaceae: Andropogoneae) de Sudamérica

New records in Schizachyrium (Poaceae - Andropogoneae) for Rio Grande do Sul and for Brazil

“…Although Schizachyrium lactiflorum (Hack.) Herter has been previously cited for other areas in Brazil (Peichoto 2010), it is here cited first time for the State of Rio Grande do Sul. Both species are additions to the recently published Catalogue of Plants and Fungi of Brazil (Zanin 2010).…”

“…According to Peichoto (2010), this species presents leaf blades (5-)7-9 mm wide, but leaf blades up to 13.5 mm wide were mentioned by Rosengurtt et al (1968) in the diagnosis of the species. Plants of the population represented by the specimen Longhi-Wagner & Welker 10843 (ICN) have even wider leaf blades, up to 15 mm wide, and present the base of the plants strongly flattened (Fig.…”

“…Regarding conservation aspects none of the two species here discussed seem to be threatened as they have a wide distribution and are frequent in other South American countries (Peichoto 2010), although less common in Brazil. New records in Schizachyrium (Poaceae -Andropogoneae) This species occurs in Paraguay, Argentina (Rosengurtt et al 1968;Peichoto 2010) and Brazil, in the Pampa biome, mainly in the Southwestern Rio Grande do Sul.…”

“…30 species, distributed from Canada to Argentina (Filgueiras 2003). Peichoto (2010) cited 15 species for Brazil, 12 of them listed in the recent Catalogue of Plants and Fungi of Brazil (Zanin 2010). This paper presents two new records of species of Schizachyrium, one for Brazil and one for the State of Rio Grande do Sul.…”

“…New records in Schizachyrium (Poaceae -Andropogoneae) This species occurs in Paraguay, Argentina (Rosengurtt et al 1968;Peichoto 2010) and Brazil, in the Pampa biome, mainly in the Southwestern Rio Grande do Sul. Schizachyrium bimucronatum occurs in grasslands with sandy soils, dry or seasonally wet, or in rocky soils and in rock crevices.…”