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6 485709 Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler (Link & Otto) Pfeiff. ex Mittler [Echinocactus denudatus Link & Otto]
K.M. Schumann, M Gürke, F. Vaupel, Bl. Kakt., vol. 1 : t. 59 (1900-1905) [Toni Gürke]
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