Bulbophyllum gracillimum

Smith, J.J., Nova Guinea 12, 4 (1916) 428, as Bulbophyllum psittacoides (Ridl.) J.J.Sm.
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 311, fig. 1197, as Cirrhopetalum warianum Schltr.
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 402, fig., pl.