800603 Hippuris lanceolata Retz.
Distribution
Northern Iceland: Rare
Northern Fennoscandia: Rare
Kanin - Pechora: Present (Frequency unknown)
Svalbard - Franz Joseph Land: Rare
Polar Ural - Novaya Zemlya: Present (Frequency unknown)
Yamal - Gydan: Present (Frequency unknown)
Taimyr - Severnaya Zemlya: Present (Frequency unknown)
Kharaulakh: Present (Frequency unknown)
West Chukotka: Scattered
Wrangel Island: Rare
South Chukotka: Scattered
East Chukotka: Scattered
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Scattered
Hudson Bay - Labrador: Scattered
Ellesmere Island: Rare
Western Greenland: Scattered
Eastern Greenland: Scattered
Northern arctic Tundra: Rare
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Retz., Observ. Bot. 3: 7 (1783). Described from the Bothnian Bay (Finland).
2n=
32 (4x). - Europe (Norway, Finland), Far East (N), Greenland. - Jørgensen et al. (1958, for H. vulgaris); Engelskjøn (1979, for H. vulgaris); Arohonka (1982); Zhukova (1982).
Geography: Circumpolar: ICE NOR RUS SIB RFE ALA CAN GRL.
Notes: Murray, Elven, and Solstad: We have assigned all specimens we have seen of Hippuris from Svalbard (Bear Island), Greenland, and the Canadian Arctic Archipelago to H. lanceolata. These were previously assigned to H. vulgaris. We have also re-assigned to H. lanceolata a significant part of the material previously assigned to H. vulgaris and H. tetraphylla from northernmost mainland North America and some material from Iceland and mainland northern Europe. Reports from the Russian areas are less certain, as the material has not been revised along the same lines yet, but we confirm material from northern Siberia and Chukotka.
Higher Taxa
- Hippuris [8006,genus]