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 Polygala pumila Norlind Figure 20F Identification. Small prostrate herb, cylindrical stem very branched. Differentiated by its alternate to sub-op- posite, sessile or sub-sessile, elliptic-ovate leaves with mucronulate apex, 3.5–7 mm length and 1.5–5 mm wide. species. Considered Presumably Extinct in São Paulo state , and Endangered in Brazil . Brazilian range. South ( PR state ) and Southeast (except ES and RJ states) regions. Material examined. BRAZIL – São Paulo • Franco da Rocha , Parque Estadual do Juquery ; 23°20′42″S , 046°42′06″W ; 13 Dec. 2017 ; collection number vck132; HUFABC1938 . Figure 2. UPGMA dendrogram based on Jaccard similarity index to compare the floristic composition of the Parque Estadual do Juquery (PEJY) with other savanna remnants described in Table 1. The red line indicates the 25% similarity threshold (Mueller- Dombois and Ellenberg, 1974). Green-yellowish flowers in a spike. Remarks. An unusual species, observed in low frequency in the PEJY grasslands and commonly occurring in clusters with other individuals from the same species. Considered Presumably Extinct in São Paulo state and Near Threatened in Brazil . Brazilian range. South and Southeast regions (except ES and RJ states). Material examined. BRAZIL – São Paulo • Franco da Rocha , Parque Estadual do Juquery ; 23°20′42″S , 046°42′06″W ; 12 Sep. 2017 ; collection number vck86; HUFABC1932 . Rubiaceae