. The Canadian field-naturalist. 564 The Canadian Field-Naturalist Vol. 118 Poa leptocoma Trin. - Yukon: steep gravelly slope adjacent to Alaska Highway 3 km east of Snag Junc- tion, 62°12';N 140°41';W, Cody & Cody 37863, 20 July 2002 (DAO). The specimen cited above is an extension of the known range in the Territory of about 175 kilometers northwest of a site in Kluane National Park. Poa secunda Presl, Sandberg Bluegrass - Yukon: commonly found growing on the base of the bluff and occasionally on midslope, Minto Bluff, 62°36'18"N 136°51'06"W, B. Bennett 02-013,
. The Canadian field-naturalist. 564 The Canadian Field-Naturalist Vol. 118 Poa leptocoma Trin. - Yukon: steep gravelly slope adjacent to Alaska Highway 3 km east of Snag Junc- tion, 62°12';N 140°41';W, Cody & Cody 37863, 20 July 2002 (DAO). The specimen cited above is an extension of the known range in the Territory of about 175 kilometers northwest of a site in Kluane National Park. Poa secunda Presl, Sandberg Bluegrass - Yukon: commonly found growing on the base of the bluff and occasionally on midslope, Minto Bluff, 62°36'18"N 136°51'06"W, B. Bennett 02-013, 9 June 2002 (DAO). The specimen cited above is an extension of about 175 kilo- meters northwest of a site north of Whitehorse (Cody 1996). To the north the only other site in the Territory is in the vicin- ity of Dawson City. Puccinellia interior Th. Son - Yukon: gravel roadside, Top of the World Highway Km 102, 64°05'33"N 140°55'22"W, Cody & Cody 38002, 26 July 2002 (DAO). The specimen cited above is an extension of the known range in the Territory (Cody 1996) of about 75 kilometers west from the vicinity of Dawson City. Setaria viridis (L.) Beauv., Green Bristlegrass (Fig- ure 2) - Yukon: in crack at edge of Extra Foods park- ing lot, downtown Whitehorse, B. Bennett 98-437, 14 Oct. 1988 (B. Bennett Herbarium, photo DAO). The specimen cited above is a new introduction to the Flora of the Yukon Territoiy (Cody 1996). This species which is introduced from Eurasia is known across Canada from Newfoundland to British Columbia and has been found at Fort Simpson in the Northwest Territories. The genus Setaria can be separated from the genus Panicum as follows: A. Spikelet surrounded by 1-many distinct or more or less connate bristles, these forming an involucre Setaria B. Spikelet not subtended by bristles Panicum Stipa comata Trin. & Rupr., Needle-and-thread - Yukon: 45° silty sand south-facing slope with Arte- mesiafrigida and Calamagrostis piu-purascens,
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