Schlumbergera microsphaerica (Britton & Rose) Hoevel [ Zygocactus obtusangulus Loefgr.]
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Schlumbergera microsphaerica (Britton & Rose) Hoevel [ Zygocactus obtusangulus Loefgr.] [Cactaceae]
Arch. Jard. Bot. Rio de Janeiro, vol. 2 : t. 5 (1917) [L. Cordeiro]