421216c Silene involucrata subsp. furcata (Raf.) V.V. Petrovsky & Elven
Svalbard - Franz Joseph Land: Scattered
Polar Ural - Novaya Zemlya: Scattered
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Frequent
Anabar - Onenyo: Scattered
Yana - Kolyma: Rare
West Chukotka: Frequent
Wrangel Island: Rare
South Chukotka: Presence uncertain
East Chukotka: Scattered
Western Alaska: Scattered
Northern Alaska - Yukon: Frequent
Central Canada: Frequent
Hudson Bay - Labrador: Frequent
Ellesmere Island: Scattered
Western Greenland: Frequent
Eastern Greenland: Frequent
Polar desert: Rare
Northern arctic Tundra: Frequent
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Rare
- V.V. Petrovsky & Elven, J. Bot. Res. Inst. Texas 2: 436 (2008). - Silene furcata Raf., Autik. Bot.: 28 (1840). Described from the Hudson Bay-Labrador area (Canada). - Melandrium furcatum (Raf.) Hultén, Acta Univ. Lund., n. s., sect. 2, 40, 1: 702 (1944) printing date not given, but probably early 1944 or: (Raf.) Hadac, Skr. Svalbard Nordishavet 87: 34 (1944) printed 04. May 1944. - Gastrolychnis furcata (Raf.) Hultén, Acta Univ. Lund., n. s., sect. 2, 40, 1: 702 (1944) comb. illeg..
- Gastrolychnis affinis auct.
48 (4x). - Siberia (N), Far East (N), Alaska, Greenland. - Numerous reports, mainly for "affinis" or "furcata".
Not included: A report of 2n = 24 (2x) for "Gastrolychnis affinis" from Churchill on Hudson Bay, Manitoba, Canada (Löve and Löve 1982a), probably a misidentification of Silene uralensis.
Geography: Circumpolar: NOR RUS SIB RFE ALA CAN GRL.
Notes: Elven, Murray, and Petrovsky: Bocquet (1967) included both the boreal Siberian and the arctic circumpolar plants inside his subsp. involucrata, an approach followed by Kurtto (2001c) and Morton (2005c). We consider them to differ at least as subspecies. In three areas of co-occurrence - in the lower Lena River area of northern Siberia, in East Chukotka, and in northern Alaska and northwestern Canada - our field experience is that they keep fully distinct at a glance. Subspecies furcata then becomes the most widespread and circumpolar race (in northwestern Europe restricted to Svalbard). Silene furcata Raf. is a slightly dubious name. However, as this race is the only one we are aware of in the Hudson Bay-Labrador area (collections in CAN inspected), a subspecific combination has been based on it. This was also the opinion of Tzvelev (2000b).
Morton (2005c) mapped his subsp. involucrata (our subsp. furcata) and his subsp. tenella (our subsp. involucrata) as widespread throughout North America and Greenland, whereas we restrict our subsp. involucrata to the northwestern parts with a very few localities as far east as western Hudson Bay. We consider the remaining North American and Greenlandic plants to belong to subsp. furcata.
- Silene involucrata [421216,species]