High richness, new occurrences, and threatened species in a savanna grassland remnant in the largest Brazilian metropolis Author Camargo Keller, Victor Author Lopes Pereira-Silva, Erico Fernando Author Hardt, Elisa text Check List 2021 2021-03-16 17 2 507 549 http://dx.doi.org/10.15560/17.2.507 journal article 10.15560/17.2.507 1809-127X Paspalum usteri Hack. Identification. Perennial rhizomatous grass, ca. 1.6 m height. Leaf-blades lanceolate, plain, apex acute, 32.0– 42.5 cm long, 1.5 cm wide, ligulate. Characterized by its pyramidal inflorescence with 25–35 alternate branches, 0.7–9.2 cm long, brownish, with scattered trichomes and paired spikelets. Remarks. Rare species, occurring on waterlogged sites. Considered Presumably Extinct in São Paulo state . Brazilian range. Midwest (MS state) and Southeast (except ES and RJ states) regions. Material examined. BRAZIL – São Paulo • Franco da Rocha , Parque Estadual do Juquery ; 23°20′17″S , 046°41′40″W ; 5 Sep. 2016 ; collection number vck4; HUFABC1889 . Schizachyrium condensatum (Kunth) Nees Identification. Perennial tussock grass, 0.35–1.1 cm height. Leaf-blades linear, glabrous, 3–25 cm long, 0.2– 0.8 cm wide, ligulate. It is identified by its erect contracted inflorescence, 5–45 cm long, with lots of ramifications, and its sessile spikelets, awns with 8–16 mm long. Remarks. Occurring scarcely on the native grassland but common on roadsides and colonizing disturbed sites. Brazilian range. Midwest, Northeast (BA state), South and Southeast (except ES and RJ states) regions. Materials examined. BRAZIL – São Paulo • Franco da Rocha , Parque Estadual do Juquery ; 23°20′30″S , 046°40′36″W ; 5 Mar. 2018 ; collection number vck216; HUFABC2058 • same collection data as for preceding; collection number vck217; HUFABC2059 .