Bulbophyllum apodum

Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 874, as Bulbophyllum ebulbe Schltr.
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 306, fig. 1174, as Bulbophyllum ebulbe Schltr.
Smith, J.J., Bull. Jard. Bot. Buitenzorg, Suppl. 3 (1938) t. 105, fig. II, as Bulbophyllum balapiuense J.J.Sm.
Smith, J.J., Bull. Jard. Bot. Buitenzorg, Suppl. 3 (1938) t. 104, fig. IV, as Bulbophyllum humiligibbum J.J.Sm.
Vermeulen, J.J., Orchid. Borneo 2 (1991) 33, fig. 6, pl. 4D
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 414, fig., as Bulbophyllum ebulbe Schltr.