Eupatorium maculatum L., 1755

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 : 509

Eupatorium maculatum Linnaeus , Centuria I Plantarum: 27. 1755.

"Habitat in America septentrionali." RCN: 6065.

Lectotype (Wiegand in Rhodora 22: 59. 1920): Kalm, Herb. Linn. No. 978.15 ( LINN) .

Current name: Eupatorium maculatum L. ( Asteraceae ).

Note: Although Mackenzie (in Rhodora 29: 8. 1927) maintained that this Kalm material could not have been the basis for the name, this seems incorrect and Wiegand’s type choice is accepted here. Lamont (in Mem. New York Bot. Gard. 72: 36. 1995) recognised E. maculatum L. as a species distinct from E. purpureum L. He also illustrated the type (as f. 25).