Distribution map of Bulbophyllum cryptanthum
Bulbophyllum cryptanthum Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 276, fig. 1056
Bulbophyllum cryptanthum Schltr., herbarium sheet, Schlechter 14320 (isotype specimen K), photo copyright the Board of Trustees of the Royal Botanic Gardens, Kew