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Cactaceae Juss. [18]
Monatsschr. Kakteenk., vol. 7 : p. 167 (1897) [T. Guerke] [12]
drawing: T. Guerke [163]
Illustration contributed by:

Cactaceae
Monatsschr. Kakteenk., vol. 7 : p. 167 (1897) [T. Guerke]