Uotila, P. (2022). New combinations and notes on Oxybasis (Amaranthaceae) from southern South America. In English, English abstract. Candollea 77: 9–16.

The new combinations Oxybasis frigida (Phil.) Uotila, O. halophila (Phil.) Uotila and O. macrosperma subsp. salsa (Phil.) Uotila are proposed according to the recent splitting of the heterogeneous genus Chenopodium L. Chenopodium glaucum var. divaricatum Hook. f. is considered to be a synonym of Oxybasis ambigua (R. Br.) de Lange & Mosyakin. Lectotypes are designated here for the names Chenopodium halophilum Phil. and C. macrospermum f. nanum Aellen. Nomenclatural notes are also provided for Oxybasis macrosperma (Hook. f.) S. Fuentes et al. and O. ambigua. Finally, O. parodii (Aellen) Mosyakin & de Lange is newly recorded from Tierra del Fuego Province in Argentina.

Received on December 6, 2020. Accepted on December 10, 2021. First published online on February 22, 2022.