Disocactus biformis (Lindl.) Lindl.
      
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2 351989 Disocactus biformis (Lindl.) Lindl. [80 225633 Cereus biformis Lindl.] Cactaceae
J. Lindley, Edwards’s Bot. Reg., vol. 31 : t. 9 (1845) [S.A. Drake]