3235916 165438 Bulbophyllum purpureorhachis (De Wild.) Schltr. [125 651488 Megaclinium purpureorhachis De Wild.] E.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(2): (Plates 26-43): t. 29 (1904) [E. Menger]
 
69766 165438 Bulbophyllum purpureorhachis (De Wild.) Schltr. [125 651488 Megaclinium purpureorhachis De Wild.] W. Curtis, Bot. Mag., vol. 135 [ser. 4, vol. 5]: t. 8273 (1909) [M. Smith]