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6 485888 Gymnocalycium platense (Speg.) Britton & Rose (Speg.) Britton & Rose [Echinocactus quehlianus F.Haage ex H.Quehl]
K.M. Schumann, M Gürke, F. Vaupel, Bl. Kakt., vol. 2 : t. 105 (1900-1905) [Toni Gürke]
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