Bulbophyllum macgregorii Schltr., Repert. Spec. Nov. Regni Veg. 10 (1911) 252
Type: Schlechter 16794 (B, lost; iso AMES, BO, K, L)
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Bulbophyllum hedyothyrsus Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 887
Type: Schlechter 18497 (holo B, lost; iso K)
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Bulbophyllum arcuatum Schltr., Repert. Spec. Nov. Regni Veg. 17 (1921) 378
Type: Kempf s.n. (border between German and English New Guinea, Waria region) (holo B, lost)
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Bulbophyllum solutisepalum J.J.Sm., Nova Guinea 14 (1929) 470, pl. 77, fig. 117
Type: Bogor cult. (Branderhorst) 293 (holo BO)
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Bulbophyllum squamiferum J.J.Sm., Nova Guinea 14 (1929) 468, pl. 77, fig. 115
Type: Pulle s.n. (New Guinea, no locality) (holo BO, spirit material)