Distribution map of Bulbophyllum densifolium
Bulbophyllum densifolium Schltr., J.J. Vermeulen, sketch, plant habit and flower analysis, based on Yumte 279 (L)
Bulbophyllum densifolium Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 292, fig. 1119