Dendrobium flagellum Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 162, fig. 608
Dendrobium flagellum Schltr., isotype specimen: Schlechter 18402 (L)
Dendrobium flagellum Schltr., detail of isotype specimen: Schlechter 18402 (L)