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6 371877 Echinopsis oxygona (Link) Zucc. ex Pfeiff. & Otto (Link) Zucc. ex Pfeiff. & Otto [Echinocactus oxygonus Link]
W. Curtis, Bot. Mag., vol. 71 [ser. 3, vol. 1] (t. 4132-4202): t. 4162 (1801) [W.H. Fitch]
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