Echinopsis spegazziniana Britton & Rose, Cactaceae 3: 69. 1922
Echinopsis spegazziniana, Cactaceae 3: 69. 1922
Lectotype (designated by Lowry, M. 2005: 121): [icon] a photograph contributed by Spegazzini: Fig. 88 'Echinopsis spegazziniana' in Britton & Rose, Cactaceae 3: 70. 1922 https://www.cactuspro.com/lecture/Britton-Rose/The-Cactaceae-volume-3/page-94.en.html