Bulbophyllum quadrangulare

Smith, J.J., Nova Guinea 12, 1 (1913) 77, t. 20, fig. 60
Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 262, fig. 999, as Bulbophyllum adenambon Schltr.
O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 436, fig., pl.

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