Homalocephala parryi (Engelm.) Vargas & Barcenas, 2018

Vargas-Luna, Mario Daniel, Hernandez-Ledesma, Patricia, Majure, Lucas Charles, uente-Martinez, Raul, cias, Hector Manuel Hernandez M & una, Rolando Tenoch Barcenas, 2018, Splitting Echinocactus: morphological and molecular evidence support the recognition of Homalocephala as a distinct genus in the Cacteae, PhytoKeys 111, pp. 31-59 : 47

Homalocephala parryi (Engelm.) Vargas & Barcenas comb. nov.

Echinocactus parryi Engelm., Proc. Amer. Acad. Arts 3: 276. 1857.

Type.

[Mexico], near Lake Santa Maria, Chihuahua, a bunch of spines collected by Dr. Parryi, s/n, apparently lost (lectotype, plate 32, figs 6-7 in Engelm., Rep. U.S. Mex. Bound., Bot. [Emory], designated by Chamberland, Syst. Bot. 22: 310. 1997).