420306 Sagina nivalis (Lindblom) Fr.
Distribution
Northern Iceland: Frequent
Northern Fennoscandia: Scattered
Kanin - Pechora: Scattered
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Scattered
Anabar - Onenyo: Rare
Kharaulakh: Frequent
West Chukotka: Frequent
Wrangel Island: Scattered
East Chukotka: Frequent
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Frequent
Hudson Bay - Labrador: Scattered
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: Scattered
Bordering boreal or alpine areas: Rare
- Fr., Novit. Fl. Svec. Mant. 3: 31 (1842 July). - Spergula saginoides var. nivalis Lindblom, Physiogr. Sällsk. Tidskr. 1: 328 (1838). Neotype (LD): Norway: Sør-Trøndelag, Oppdal, Kongsvold, 18. Sept. 1839, leg. Lindblom (Nilsson in Jonsell 1996: 6; as 'lectotype').
- Sagina intermedia Fenzl in Ledeb., Fl. Ross. 1: 339 (1842 October). Described from St. Lawrence Bay in East Chukotka (the Russian Far East). - Spergella intermedia (Fenzl) Á. Löve & D. Löve, Bot. Not. 128: 508 (1976).
2n=
56 (8x). - Europe (N), Far East (N), Alaska. - Johnson and Packer (1968); Löve (1970a); Packer and McPherson (1974); Löve and Löve (1975c); Petrovsky and Zhukova (1983b).
Not included: Crow (2005) accepted both 2n = 56 and 88 [84-88] for S. nivalis. It is improbable that both numbers are present in this species. We suspect that the reports of 2n = 84-88 are based on misidentified S. caespitosa (see below): Löve and Löve (1948 northwestern Europe, 1956b Iceland, 2n = 88); Blackburn and Morton (1957 northwestern Europe, 2n = 84); Crow (1978 North America, 2n = ca. 88). Three of the five reports of 2n = 56 are from areas where S. caespitosa is absent (Alaska and Chukotka), whereas all reports of 2n = 84-88 are from regions where S. caespitosa is present. Löve and Löve (1975a) reported 2n = 56 for S. nivalis and omitted the other reports (including their own), in this case probably justifiably so.
Geography: Circumpolar: ICE NOR RUS SIB RFE ALA CAN GRL.
Higher Taxa
- Sagina [4203,genus]