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6 390362 Epiphyllum thomasianum (Schumann) Britton & Rose (Schumann) Britton & Rose [Phyllocactus thomasianus Schumann]
K.M. Schumann, M Gürke, F. Vaupel, Bl. Kakt., vol. 1 : t. 41 (1900-1905) [Toni Gürke]
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