Disocactus mallisonii (Otto & A.Dietr.) Barthlott [ Cereus smithii Pfeiffer]
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Disocactus mallisonii (Otto & A.Dietr.) Barthlott [ Cereus smithii Pfeiffer] [Cactaceae]
C.F. Förster, T. Rümpler, Handb. Cacteenk., ed. 2, vol. 2 : t. 140 (1886)