Mammillaria echinus Engelm. in Proc. Amer. Acad. Arts 3: 267. 1856
Mammillaria echinus in Proc. Amer. Acad. Arts 3: 267. 1856
is basionym for Coryphantha echinus, Cactaceae 4: 42. 1923
is basionym for Coryphantha echinus, Circular to Cactus Fanciers, p.i. 1922
is basionym for Cactus echinus, Revis. Gen. Pl. 1: 260. 1891
is basionym for Mammillaria radians f. echinus, Handb. Kakteenkult.: 240. 1907
is basionym for Mammillaria radians var. echinus, Gesamtbeschr. Kakt.: 496. 1897–1899
is basionym for Coryphantha cornifera var. echinus in Cact. Succ. J. (Los Angeles) 41: 189. 1969
is basionym for Coryphantha radians var. echinus, Cacti, ed. 2: 115. 1952