Distribution map of Bulbophyllum serrulatum
Bulbophyllum serrulatum Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 281, fig. 1074
Bulbophyllum serrulatum Schltr., herbarium sheet, Schlechter 14182 (isotype specimen K), photo copyright the Board of Trustees of the Royal Botanic Gardens, Kew