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12 369933 Echinocereus enneacanthus Engelm. Engelm. [Echinocereus blanckii (Poselg.) Palmer]
K.M. Schumann, M Gürke, F. Vaupel, Bl. Kakt., vol. 2 : t. 70 (1900-1905) [Toni Gürke]
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