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6 494911 Haumania danckelmaniana (J.Braun & Schumann) Milne-Redh. [125 1024161 Trachyphrynium danckelmanianum J.Braun & Schumann]
H.G.A. Engler, O. Drude, Veg. Erde, vol. 9(2): : p. 396, fig. 279 L,M (1908) [J. Jegermeyer]