Caroxylon calluna (Drège ex C.H.Wright) Theodorova 2017

Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, Phytotaxa 312 (2), pp. 151-178 : 158

18. Caroxylon calluna (Drège ex C.H.Wright) Theodorova in Mucina, comb. nov.

Basionym: ― Salsola calluna Drège ex C.H.Wright in Thiselton-Dyer, Fl. Capensis 5, 1: 454 (1912).

Lectotype (designated by Wright 1912: 454): ― SOUTH AFRICA. Uitflugt , auf verschiedenen Stellen bei Steelkloof, 4000–5000 ft, December/January, Drège 8023b (lectotype W-0046461!;!; isolectotypes LE-00011835!, W-0046460!).

‒ “ Caroxylon callunum ” in Theodorova in Turczaninowia 14(3): 75 (2011), [comb. inval.]

‒ Salsola calluna Fenzl , in schedis, (Ecklon & Zeyher 1448 WU!).

‒ Salsola calluna Fenzl ex Drège in Flora 2, Beigabe: 50, 56, 217 (1843), nom. nud. (Art. 38.1a of ICN).

Notes: ― Feodorova (2011) used a wrong form of the species epithet ( ‘ callunum ’). The epithet apparently alludes to Calluna vulgaris ( Ericaceae ) of which the flowering/fruiting branches of this Caroxylon species are remotely reminiscent. ‘ Calluna ’ is the nown and the specific epithet should be preserved. Moreover, when proposing her new combination, Feodorova (2011) also provided a wrong citation of the basionym, thus making her combination invalid. The combination is validated here and Feodorova’s authorship is preserved.

Distribution: ― South Africa (FS, NC, WC?, EC): southern Bushmanland, Upper Karoo, Middelburg region, salt pan region of western Free State and Griqualand West.