Chapter 7: Linnaean Plant Names and their Types (part E) Author Jarvis, Charlie Department of Botany, Natural History Museum, Cromwell Road, London, UK text 2007 Linnaean Society of London in association with the Natural History Museum London Order out of Chaos. Linnaean Plant Types and their Types 490 515 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Eupatorium trifoliatum Linnaeus , Species Plantarum 2 : 837. 1753 . "Habitat in Virginia." RCN: 6062. Lectotype (Reveal in Jarvis & Turland in Taxon 47: 361. 1998): Herb. Linn. No. 336.1 ( S ) . Current name: Eupatorium purpureum L. ( Asteraceae ). Note: Wiegand (in Rhodora 22: 61. 1920) provided an extensive discussion of the original elements for this name. Mackenzie (in Rhodora 22: 163-165. 1920; 29: 6. 1927) disputed that Clayton 620 (BM) played any role in this but neither author designated a type. See review by Reveal & al. (in Huntia 7: 221. 1987). Lamond (in Mem. New York Bot. Gard. 72: 48. 1995) incorrectly treated 978.11 (LINN), a post-1753 addition to the herbarium, as the holotype .