6 213748 Cattleya tenebrosa (Rolfe) A.A.Chadwick [125 213213 Cattleya alexandrae var. tenebrosa Rolfe]
A. Cogniaux, A. Goossens, Dict. Icon. Orchid., vol. 7 (Laelia): t. 8 (1896-1907) [A. Goossens]

---