Notes on Gentianella tarapacana (Gilg) T.N.Ho & S.W.Liu (Gentianaceae), endemic to the Chilean Altiplano

over a century after its first collection, gentianella tarapacana (gilg) t.n. ho & s.w. liu (gentianaceae) was rediscovered at its type locality amincha (region ofantofagasta, province el loa; 21°12's; 68°20'w, 3850 m). the species is endemic to the altiplano of northern chile. it grows in wetland habitats. we designate a lectotype and provide a detailed description of the species, as well as an illustration and floristic information about its habitat at the type locality.