Latin Delaetĭi genitive (possessive) form of Delaetĭus, latinization of De Laet. Named for Belgian nurseryman Frantz De Laet (1866-1928), who probably introduced the species to Europe. Schumann spelled the epithetde Laetii.
Echinocactus delaetii photographed by Frantz De Laet / Image credit: Schumann 1901
Maarten H.J. van der Meer (2023 Jul 17). Gymnocalycium schickendantzii subsp. delaetii. Dictionary of Cactus Names. Retrieved from https://www.cactusnames.org/gymnocalycium-schickendantzii-subsp-delaetii