Distribution map of Bulbophyllum longilabre
Bulbophyllum longilabre Schltr., plant habit, photo E.F. de Vogel, Leiden cult. 20080311
Bulbophyllum longilabre Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 232, fig. 881