Paphiopedilum stonei (Hook.) Stein [ Cypripedium stonei Hook.]
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Paphiopedilum stonei (Hook.) Stein [ Cypripedium stonei Hook.] [Orchidaceae]
A. Cogniaux, A. Goossens, Dict. Icon. Orchid., vol. 4 (Cypripedium): t. 1 (1896-1907) [A. Goossens]