Catasetum has about 170 terrestrial and epiphytes species with neotropical distribution and could be recognized by having several internodes per pseudobulb, the unisexual flowers (rare hermaphrodites), and pollinarium with stipe, caudicle, and viscidium. The aim of this study was to do the taxonomic treatment of Catasetum in Paraná State, presenting the descriptions, illustrations, distribution map, identification key, conservation status, and comments for each species. The genus occurs predominantly in the Floresta Ombrófila Densa (Catasetum atratum, C. socco, and C. triodon) and the Floresta Ombrófila Mista (C. fimbriatum) in the state. According to the IUCN criteria, C. atratum can be currently considered a critically endangered species, C. fimbriatum and C. triodon endangered species, and C. socco a vulnerable species in the Parana State.
Atlantic Forest; Biodiversity; IUCN; Paraná flora
