Bulbophyllum hahlianum

Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 744
Smith, J.J., Nova Guinea 12, 4 (1916) 422
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 246, fig. 935
Smith, J.J., Nova Guinea 14, 3 (1929) 481
Smith, J.J., Nova Guinea 18, 1 (1935) 70
Howcroft, N.H.S., Orchadian 9 (1987) 37, fig. 1
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 454, fig., pl.