PAF: Arnica lessingii (Torr. & A. Gray) Greene

	Arnica lessingii (Torr. & A. Gray) Greene
Publ. & Syn.	Arnica porsildiorum B. Boivin, Naturaliste Canad. 75: 210 (1948). Holotype (CAN): Alaska: the Seward Peninsula, 1926, leg. A.E. Porsild & R.T. Porsild 1402.
Notes	Hultén (1968a) mapped Arnica lessingii from East Chukotka but it has not been accepted from there by Russian authors. Barkalov (1992) mapped it as frequent in Kamtchatka but not farther north.
Chromosomes	(1) 38 (2x). - Alaska. - At least three reports. (2) 57 (3x). - Canada (Yukon). - Mulligan and Porsild (1969b). (3) 76 (4x). - Far East (N), Alaska. - At least four reports.
Geography	Asian Pacific - amphi-Beringian (E): ALA CAN.
Distribution	N = F AN = f D = R E = F AW = f [ key ]
Parent taxon	Arnica L.
PAF ID	861205

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Panarctic Flora Editor-in-Chief: Reidar Elven (Natural History Museum, University of Oslo)
Editorial Committee: Reidar Elven, David F. Murray (Museum of the North, University of Alaska), Volodya Yu. Razzhivin (Komarov Botanical Institute, Russian Academy of Sciences), Boris A. Yurtsev [deceased] (Komarov Botanical Institute, Russian Academy of Sciences)