Ariocarpus fissuratus (Engelm.) Schumann [ Mammillaria fissurata Engelm.]
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12 85728 Ariocarpus fissuratus (Engelm.) Schumann [12 85728 Ariocarpus fissuratus (Engelm.) Schumann] Cactaceae
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 16 () [P. Roetter]