Pelecyphora hesteri (Y.Wright) D.Aquino & Dan. Sanchez comb. nov.

Coryphantha hesteri ≡ Coryphantha hesteri Y.Wright, Cact. Succ. J. (Los Angeles) 4: 274. 1932. Escobaria hesteri (Y.Wright) Buxb., Oesterr. Bot. Z. 98: 78. 1951. Type: United States, Hill on U.S. 385, 3.5 miles south of U.S. 90 east of Marathon. South side of gap and road cut. Crest of hill. Drainage Area Rio Grande, 06 Apr 1965, L. D. Benson & B. H. Warnock, 16500 (neotype, designated by Benson, Cacti U. S. Canada: 961. 1982: POM [315706 image!]).