. The Canadian field-naturalist. 570 The Canadian Field-Naturalist Vol. 118 The specimen cited above is an extension of the known range in the Territory (Cody 1996) of about 100 kilometers east northeast of a site north of the junction of the Pelly and Yukon rivers. Ranunculus aquatilis L. var. subrigidus (W. B. Drew) Breitung - Yukon: near South Fork intake, Klondike River on edge of beaver dam in old ditch, 64^0'30"N 138°12'00"W, G. Bnmner549, 22 July 2002 (DAO). The nearest site known to Cody (1996) of this uncommon variety was about 60 kilometers to the north adjacent to the Demp
. The Canadian field-naturalist. 570 The Canadian Field-Naturalist Vol. 118 The specimen cited above is an extension of the known range in the Territory (Cody 1996) of about 100 kilometers east northeast of a site north of the junction of the Pelly and Yukon rivers. Ranunculus aquatilis L. var. subrigidus (W. B. Drew) Breitung - Yukon: near South Fork intake, Klondike River on edge of beaver dam in old ditch, 64^0'30"N 138°12'00"W, G. Bnmner549, 22 July 2002 (DAO). The nearest site known to Cody (1996) of this uncommon variety was about 60 kilometers to the north adjacent to the Dempster Highway. Ranunculus occidentalis Nutt. var. brevistylis Greene, Western Buttercup - Yukon: alpine tundra, valley above treeline, Macmillan Pass, 63°15'N 130°02'W, /. Basinger , June 1982 (DAO). Douglas et al. (1981) considered this species rare in the Territory. The specimen cited above is the northernmost yet found in the Territory and is an extension of the known range of about 250 kilometers northeast of a site adjacent to the northern South Canol Road. Papaveraceae Papaver croceum Ledeb. - YUKON: by garbage along trail in Picea glauca, Pinus, Populus tremuloides wood- land, Whitehorse, near Hidden Lake, 60°35';N 135°51';W, Cody & Cody 37678A, 9 Aug. 2001 (DAO); in gravel beside car parking spot, 11 Chalet Crescent, Whitehorse, 60°55';N 135°10';W, W. J. Cody 37711, 12 July 2002 (DAO) (determined by H. Solstad). This species is a garden escape which has not previously been recorded from the Whitehorse area. In addition Heidi Solstad revised three collections previously determined as Papaver nudicaule (Dawson, Calder & Billard 3121 (DAO), Halfway Lakes area 15 miles north of Mayo, Calder & Gil- lett 4176 (DAO) and Tower Hill, Tagish, R. Rosie 798 (DAO)) to P. croceum. P. nudicaule ssp. nudicaule should be replaced by R croceum in the flora (Cody 1996, 2000). Brassicaceae (Cruciferae) Alyssum obovatum (C. A. Meyer)
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