Distribution map of Bulbophyllum guttatum
Bulbophyllum guttatum Schltr, N. Howcroft, drawing, plant habit and flower analysis
Bulbophyllum guttatum Schltr., J.J. Vermeulen, drawing, plant habit and flower analysis
Bulbophyllum guttatum Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 246, fig. 937