Equisetum arvense L., 1758

Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part E), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 490-515 : 497

Equisetum arvense Linnaeus , Species Plantarum 2: 1061. 1753.

“Habitat in Europae agris, pratis.” RCN: 7730.

Lectotype (Jonsell & Jarvis in Nordic J. Bot. 14: 148. 1994): Clayton 341 (BM-000062951).

Current name: Equisetum arvense L. ( Equisetaceae ).

Note: Hauke (in Nova Hedwigia 13: 106. 1966) indicated Löfling 713 (1241.4 LINN) as “a type for the name”, but he believed that it was a post-1753 addition to the herbarium, and evidently treated it as a neotype. As original material is in existence, designation of a neotype is contrary to Art. 9.11, and Jonsell & Jarvis therefore rejected Hauke’s choice in favour of a Clayton collection.