Euphrasia officinalis Linnaeus, Species Plantarum 2: 604. 1753. "Habitat in Europae pascuis aridis." RCN: 4380. Lectotype (Yeo in Bot. J. Linn. Soc. 77: 237. 1978): Herb. Linn. No. 759.2, excl. middle specimen (LINN). Generitype of Euphrasia Linnaeus (vide Green, Prop. Brit. Bot.: 167. 1929). Current name: Euphrasia officinalis L. subsp. officinalis (Scrophulariaceae). Note: Some authors (e.g. Pugsley in Bot. J. Linn. Soc. 48: 522. 1930; Smejkal in Biol. Práce 9(9): 6. 1963; Sell & Yeo in Bot. J. Linn. Soc. 63: 201. 1970) have rejected this as a nomen ambiguum, as did Yeo (in Bot. J. Linn. Soc. 77: 237. 1979), despite designating a lectotype. Silverside (in Watsonia 18: 343-346. 1991) accepted Yeo’s typification but argued that there are no grounds for rejecting the name, and applied it in the sense of E. rostkoviana Hayne var. fennica (Kihlman) Jalas.

Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part E), pp. 490-515 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 515, DOI: 10.5281/zenodo.291971