Bulbophyllum cruciatum

Smith, J.J., Nova Guinea 8, 3 (1911) 588, t. 102C
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 723, as Bulbophyllum mutatum J.J.Sm.
Smith, J.J., Nova Guinea 12, 4 (1916) 368
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 237, fig. 900, as Bulbophyllum immobile Schltr.
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 237, fig. 899, as Bulbophyllum mutatum J.J.Sm.
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 388, fig., as Bulbophyllum mutatum J.J.Sm.
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 390, fig.