Flora of Ceará, Brazil:Ditassa (Asclepiadoideae/Apocynaceae)

Abstract This study aimed to carry out a taxonomic floristic survey of species in the genus Ditassa (Asclepiadoideae/Apocynaceae), as part of the “Flora do Ceará: knowing to conserve” project. The study was based on the analysis of morphological characters of specimens from representative herbaria for the genus. The identifications were performed using specialized bibliography and confirmed by analyzing type collections. For Ceará state, six species of Ditassa were registered: D. blanchetii, D. capillaris, D. dardanoi, D. glaziovii, D. hastata and D. hispida. The species occur in Savana (Cerrado), Stepic Savanna (Caatinga/Carrasco), Dense Ombrophilous Forest (Wet forest) and Lowland Semideciduous Seasonal Forest (Tableland forest). Only D. capillaris and D. hastata were recorded in Conservation Units.