1924*"Bulbophyllum howcroftii" Garay, Hamer & Siegerist 1995: Howcroft's Bulbophyllum*"Bulbophyllum hoyifolium" J.J.Verm.
1924* "Bulbophyllum howcroftii" Garay, Hamer & Siegerist 1995* "Bulbophyllum hoyifolium" J.J.Verm.