Acanthocalycium thionanthum
(Speg.) Backeb. (1936)
Etymology
🌵 Author(s) | Curt Backeberg |
🌵 Basionym | Echinocactus thionanthus (1905) |
🌵 Basionym author(s) | Carlo Luigi Spegazzini | 🌵 Basionym published in | Anal. Mus. Buenos Aires ( ser. 3) 4: 499 (1905) |
Greek theion (stem thei-), latinized thium (stem thi-), ‘sulfur’ + Greek anthos ‘flower’. For the flower color.
The epithet thionanthus is correctable to thianthus under article 60.10 of the International Code of Nomenclature, but Spegazzini likely intentionally chose this form to rhyme with Echinocactus chionanthus (a correctly formed compound of Greek chiōn ‘snow’ + Greek anthos ‘flower’), which he published on the same page. Compare Lemaire’s correction of Echinocactus theionacanthus Lem. (Cact. Aliq. Nov. Desc.: 20. 1838) (= Ferocactus glaucescens) to Echinocactus theiacanthus (Cact. Gen. Sp. Nov.: 86. 1839: “In the first book, by a typographical error, the name was written Theionacanthus”).
Maarten H.J. van der Meer (2023 Jul 17). Acanthocalycium thionanthum. Dictionary of Cactus Names. Retrieved from https://www.cactusnames.org/acanthocalycium-thionanthum