Coryphantha clavata (Scheidw.) Backeb. in Cactaceae (Berlin) 1941(2): 61. 1942
Coryphantha clavata in Cactaceae (Berlin) 1941(2): 61. 1942
is new combination for Mammillaria clavata in Bull. Acad. Roy. Sci. Bruxelles 5: 494. 1838
Coryphantha clavata in Cactaceae (Berlin) 1941(2): 61. 1942