Distribution map of Bulbophyllum algidum
Bulbophyllum systenochilum J.J.Verm., Orchid Monogr. 7 (1993) 174, fig. 131, J.J. Vermeulen, drawing, plant habit and flower analysis, based on a-f,h Brass 9110 (holo AMES); g Brass 9272 ()