Distribution map of Bulbophyllum bulliferum
Bulbophyllum bulliferum J.J.Sm., Orchid Monogr. 7 (1993) 84, fig. 43, J.J. Vermeulen, drawing, plant habit and flower analysis, based on a,e,h,k Hunt 2236 (); b,c,g,i,j Jongejan 1573 (L); d,f,l,m Brass 7095 ()
Bulbophyllum bulliferum J.J.Sm., Orchid Monogr. 7 (1993) 84, fig. 44, J.J. Vermeulen, drawing, plant habit and flower analysis, based on b Hunt 2236 (); Leiden cult. 31641 (L)
Bulbophyllum bulliferum J.J.Sm., floral analysis, drawing J.J. Smith, from Versteeg 1449
Bulbophyllum verrucibracteum J.J.Sm., habit, drawing Natadipoera, from Gjellerup 745
Bulbophyllum verrucibracteum J.J.Sm., floral analysis, drawing J.J. Smith, from Gjellerup 745
Bulbophyllum barbilabium Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 306, fig. 1177
Bulbophyllum barbilabium Schltr., herbarium sheet, Schlechter 20097 (isotype specimen BO)