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  • © The_Cactaceae_Vol_III,_plate_XXIV_filtered.jpg: Mary Emily Eaton (1873-1961). Daniel Schweich for the filtred image. . derivative work: Succu
  • Copyright licence: CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)
  • Provenance: http://media.eol.org/content/2013/06/11/07/37446_orig.jpg