5 747551 Paphiopedilum purpuratum (Lindl.) Stein [116 313434 Cypripedium purpuratum Lindl.]
A. Cogniaux, A. Goossens, Dict. Icon. Orchid., vol. 17 fasicle Cypripedium, : t. 12 (1896-1907) [A. Goossens]