320209b Luzula arcuata subsp. unalaschkensis (Buchenau) Hultén
Distribution
West Chukotka: Frequent
South Chukotka: Frequent
East Chukotka: Frequent
Western Alaska: Frequent
Northern Alaska - Yukon: Scattered
Mid Arctic Tundra: Presence uncertain
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Hultén, Ark. Bot., n. s., 7, 1: 32 (1968). - Luzula arcuata var. unalaschkensis Buchenau, Bot. Jahrb. Syst. 12: 124 (1890). Lectotype (W): Alaska: the Aleutian Islands, "Unalaschka", leg. H. Mertens (Kirschner et al. 2002a: 88). - Luzula unalaschkensis (Buchenau) Satake, J. Jap. Bot. 14: 260 (1938).
- Luzula arcuata var. kamtschadalorum Sam. in Hultén, Fl. Kamtchatka 1: 223 (1927). Lectotype (S!): Russian Far East: Kamtchatka, the Avatcha volcano, 20. Aug. 1920, leg. E. Hultén 620 (Hämet-Ahti 1973: 123). - Luzula kamtschadalorum (Sam.) Gorodkov ex Krylov, Fl. Zapadn. Sibir. 3: 551 (1929).
- Luzula beringensis Tolm., Fl. Arct. URSS 4: 39 (1963). Holotype (LE): Russian Far East: South Chukotka, "Terra Koriakorum, ... in cucumine montis Prodolgovataia sopka, prope sinum Korfii maris Beringii", 19. Aug. 1960, leg. A. Tolmachev, Cl. Stepanova, and L. Fedorova.
2n=
36. - Far East (N), Alaska, Canada. - Numerous reports.
Geography: Amphi-Pacific/Beringian: RFE ALA CAN.
Notes: Egorova et al.: We accept subsp. unalaschkensis (including Luzula beringensis and L. kamtschadalorum) as a broadly distributed amphi-Pacific/Beringian race of L. arcuata. Its range largely encompasses that of Beringian subsp. arcuata, see discussion above. The material (ALA) we have seen from the area of overlap of ranges between subsp. unalaschkensis and subsp. arcuata in the Bering Strait region does not suggest transitions. A re-evaluation of rank may be needed.
Higher Taxa
- Luzula arcuata [320209,species]