Mammillaria vivipara var. alversonii (J.M.Coult.) L.D.Benson

, Cacti Ariz. ed. 2, 118 (1950).
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External links to taxonomic opinions:
POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:151851-2
Publication
Cacti of Arizona, The
Collation
ed. 2, 118
Family as entered in IPNI
Cactaceae

Links

Nomenclatural link
Cactus radiosus var. alversonii J.M.Coult., Contr. U.S. Natl. Herb. 3(2): 122 (1894).