distribution map
Tropidia gracilis Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 37, fig. 128
Tropidia gracilis Schltr., herbarium sheet, Schlechter 13869 (isotype specimen K), photo copyright the Board of Trustees of the Royal Botanic Gardens, Kew