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6 371877 Echinopsis oxygona (Link) Zucc. ex Pfeiff. & Otto (Link) Zucc. ex Pfeiff. & Otto [Echinocactus oxygonus Link]
J. Lindley, Edwards’s Bot. Reg., vol. 20 (tt. 1653-1741): t. 1717 (1835) [S.A. Drake]
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