Pinguicula vulgaris L.

Gillespie, Lynn J., Saarela, Jeffery M., Sokoloff, Paul C. & Bull, Roger D., 2015, New vascular plant records for the Canadian Arctic Archipelago, PhytoKeys 52, pp. 23-79 : 48-51

Pinguicula vulgaris L. Fig. 15

Common name.

Butterwort

Distribution.

Nearly circumboreal-polar

Comments.

This species was first reported from the western Arctic Islands by Thannheiser et al. (2001; no voucher collection located for confirmation) at Johansen Bay on Victoria Island (they incorrectly considered their record as the first for the whole CAA). We collected this species at Johansen Bay and Clauston Bay on southwestern Victoria Island and from three sites in the Minto Inlet area on northwestern Victoria Island, extending the northern range of this low Arctic species. On Victoria Island the species was sometimes locally common and populations were scattered mostly in moist to wet meadows on river flats. Two nearby populations were discovered in rocky tundra on the top of a plateau south of Minto Inlet; the larger population (Gillespie et al. 9967) comprised about 50 plants scattered in a moist depression in a boulder field adjacent to an Eriophorum meadow above the head of a canyon. The species was previously known in the CAA based on four collections from southeastern Baffin Island ( Porsild 1957, Porsild and Cody 1980, Aiken et al. 2007). We collected it at six sites there, in the vicinity of Kimmirut (where previously known) and from five sites along the Soper River (one previous collection known).

Specimens examined.

Canada. Nunavut: Kitikmeot Region, Victoria Island, vicinity of river flowing into Clauston Bay, 3-4 km from river mouth, 69°2'39"N, 113°25'15"W, 10-20 m, 8 July 2008, Gillespie, Saarela, Consaul, & Bull 7718 (ALA, CAN-592385, MT, O); Kitikmeot Region, Victoria Island, W end of Johansen Bay at mouth of Mackenzie Creek, 68°36'4"N, 111°21'7"W, 0-20 m, 20 July 2008, Gillespie, Saarela, Consaul & Bull 8132 (CAN-592384); Qikiqtaaluk Region, Baffin Island, Katannilik Territorial Park Reserve, Soper River, west bank, near confluence with Livingstone River, crystalline limestone ridge just north of confluence, 63°6'38"N, 69°44'14"W, 100m, 10 July 2012, Saarela, Gillespie, Sokoloff & Bull 2264 (CAN-601974); Qikiqtaaluk Region, Baffin Island, Katannilik Territorial Park Reserve, Livingstone River (major tributary of Soper River), north side, near confluence with Soper River, ca. 0.5 km northwest of Livingstone Falls, 63°6'32"N, 69°44'38"W, 141m, 12 July 2012, Saarela, Gillespie, Sokoloff & Bull 2381 (CAN-601972, MO); Qikiqtaaluk Region, Baffin Island, Katannilik Territorial Park Reserve, Soper River, 18.5 km downstream (south) of its confluence with the Livingstone River, 2 km south of Emergency Cabin #8, west side of river, 62°59'17"N, 69°43'47"W, 60m, 15 July 2012, Saarela, Gillespie, Sokoloff & Bull 2478 (ALA, CAN-601970, WIN); Qikiqtaaluk Region, Baffin Island, Katannilik Territorial Park Reserve, Soper Falls, south side of Soper Lake, just southeast of Soper Falls, 62°54'1"N, 69°50'48"W, 6 m, 17 July 2012, Saarela, Gillespie, Sokoloff & Bull 2531 (CAN-601973); Qikiqtaaluk Region, Baffin Island, Katannilik Territorial Park Reserve, Soper Falls, north side of Soper River, 62°54'35"N, 69°50'43"W, 20m, 18 July 2012, Saarela, Gillespie, Sokoloff & Bull 2565 (CAN-601975); Qikiqtaaluk Region, Baffin Island, Kimmirut, northwest end of Fundo Lake, ca. 2 km west of hamlet, 62°50'36"N, 64°54'10"W, 30m, 22 July 2012, Saarela, Gillespie, Sokoloff & Bull 2787 (CAN-601971). Northwest Territories: Inuvik Region, Victoria Island, plateau above head of enclosed valley S of "Fish Lake" on lower Kuujjua River, 71°10'44.3"N, 116°27'11.9"W, 120 m, 16 July 2010, Gillespie, Saarela, Doubt, Bull & Sokoloff 9878 (CAN-599229); Inuvik Region, Victoria Island, wet rocky tundra on plateau above head of enclosed valley S of "Fish Lake" on lower Kuujjua River, 71°10'14.2"N, 116°27'29.1"W, 100 m, 16 July 2010, Gillespie, Saarela, Doubt, Bull & Sokoloff 9880 (CAN-599258); Inuvik Region, Victoria Island, sandy bank of Kuujjua River S of "Fish Lake", 71°6'43.2"N, 116°6'21.2"W, 70 m, 17 July 2010, Gillespie, Saarela, Doubt, Bull & Sokoloff 9967 (CAN-599230, O).