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1 record found in the Index Nominum Genericorum database.

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Diacritical Conversion

Ritterocactus A. B. Doweld, Sukkulenty 1999(2): 22. 25 Dec 1999.
T.: R. mammulosus (Lemaire) A. B. Doweld (Echinocactus mammulosus Lemaire)
Based on Notocactus subg. Neonotocactus Backeberg, Cact. Succ. J. (Los Angeles) 22: 153. 1950.
PHAN.-CACTACEAE (115) 29 May 2000