Bulbophyllum trifilum

Smith, J.J., Nova Guinea 8, 1 (1909) 102, t. 34, fig. 112
Smith, J.J., Nova Guinea 12, 4 (1916) 407, t. 152, fig. 284, as Bulbophyllum cavistigma J.J.Sm.
Smith, J.J., Nova Guinea 12, 4 (1916) 409, t. 154, fig. 286, as Bulbophyllum fatuum J.J.Sm.
Vermeulen, J.J., Orchid Monogr. 7 (1993) 115, fig. 72 & 73a-e, pl. 3d