| Silene involucrata subsp. furcata (Raf.) V.V. Petrovsky & Elven | |
| Publ. & Syn. | Gastrolychnis affinis auct. |
| 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. |
| Chromosomes | 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. |
| Distribution | N = R A = R AN = f B = F AO = s C = F GW = f D = F E = F CC = f WI = r YG = s HL = f EP = s CE = s CS = ? UN = s YK = r AW = s GE = f Kh = f SF = s CW = f Tm = f [ key ] |
| Parent taxon | Silene involucrata (Cham. & Schltdl.) Bocquet |
| PAF ID | 421216c |