Check List 19(4): 573-580, doi: 10.15560/19.4.573
New records and range extension of a Brazilian Amazon white-sand endemic species: Roraimaea aurantiaca Struwe, S.Nilsson & V.A.Albert (Gentianaceae)
expand article infoLayon Oreste Demarchi, Lena Struwe§, Maria Julia Ferreira|, Jochen Schöngart, Florian Wittmann, Maria Teresa Fernandez Piedade
‡ Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil§ Rutgers University, New Brunswick, United States of America| Universidade Federal Rural de Pernambuco - UFRPE, Recife, Brazil¶ Karlsruhe Institute for Technology (KIT), Rastatt, Germany
Open Access

Roraimaea aurantiaca Struwe, S.Nilsson & V.A.Albert, a white-sand endemic species, was previously known from only two specimens collected in Roraima state, Brazil. Our new field collections and re-identified herbarium specimens expand this species’ distribution and include the first records from the Brazilian state of Amazonas. Based on this effort, we present a distribution map, preliminary conservation status of Endangered, the first photographs of living plants, and an updated morphological description. This study aggregates new information on the flora of the northern Amazon Basin, in addition to discussing conservation of R. aurantiaca

Amazon Basin, biogeography, campinarana, Helieae, Neotropics, oligotrophic habitat, white-sand ecosystem