Mammillaria echinoidea Quehl in Monatsschr. Kakteenk. 23: 42. 1913
Mammillaria echinoidea in Monatsschr. Kakteenk. 23: 42. 1913
is basionym for Coryphantha echinoidea, Cactaceae 4: 30. 1923
Lectotype (designated by Hunt, D.R. 2001: 111): [icon] the photograph accompanying the protologue in Monatsschr. Kakteenk. 23: 42. 1913 https://www.biodiversitylibrary.org/page/53993744