500116 Micranthes unalaschensis (Sternb.) Gornall & H. Ohba
Distribution
East Chukotka: Presence uncertain
Western Alaska: Rare
Shrub Tundra: Rare
Bordering boreal or alpine areas: Frequent
- Gornall & H. Ohba, J. Bot. Res. Inst. Texas 1: 1022 (2007). - Saxifraga unalaschensis Sternb., Revis. Saxifrag., Suppl. 2: 9, t. 21 (1831). Holotype (LE): Alaska: the Aleutian Islands, "in insula Unalaschka", leg. Chamisso. - Saxifraga calycina subsp. unalaschensis (Sternb.) Hultén, Bot. Not. 126: 494 (1973).
- Saxifraga flabellifolia R. Br. ex Torr. & A. Gray, Fl. N. Amer. 1: 569 (1840). Described from Unalaska in the Aleutian Islands (Alaska). - Micranthes flabellifolia (R. Br. ex Torr. & A. Gray) Small, N. Amer. Fl. 22, 2: 143 (1905).
Geography: Amphi-Beringian: RFE? ALA.
Notes: Zhmylev: Micranthes unalaschensis is a southern Beringian boreal species, distributed mainly in the Commander and Aleutian islands. It may occur also on the Bering Sea islands and on the coast of Chukchi Peninsula and Alaska see map by Hultén (1968a), from where transition forms to M. calycina (hybrids?; Siplivinsky 1976) are known.
Murray and Elven: Micranthes unalaschensis is documented (ALA) to occur as rare in the Arctic in southwestern Alaska. Transitions towards M. calycina occur farther north.
Higher Taxa
- Micranthes [5001,genus]