A survey of the Phytogeography of the Arctic American Archipelago 
107 
The occurrence of this species in Arctic America and Greenland has escaped 
all previous writers, and was first pointed out by Ostenfeld (Flow. Pl. Cape York) 
and myself (Flora Ellesra.). It may generally have been taken for P. nivea, which 
is, in fact, a rather rare plant to the north, but as there exist several other con- 
fusions also, the records in literature are of no use and I have only inserted in 
the list such localities as I have seen specimens from. 
139. Potentilla nivea, L. 
Distribution. Victoria Land: Miuto Inlet (KH, SH) and Cambridge Bay 
(KH), Anderson; Baffin Land: Cape Searle, Tätlor (KH, NHM), Cumberland Gulf, 
Tatloe (Pl. Baff.), KuMLiEN (Plants), Kekerten, Milikdjuak, Niatohk, Scotts Bay, Cape 
Adair, Taylor (1. c). 
Geographic area. Greenland, northern parts and mountains of North Ame- 
rica, Asia, and Europé. 
Besides from the locahties quoted above, P. nivea is recorded from several 
other parts of the Archipelago, but as all available specimens have been found to 
belong to other species, I have thought best to exclude them altogether. Perhaps 
also some of the Baffin Land records may rightly belong to other species, as I have 
only had the opportunity of verifying it from one, viz., Cape Searle. In America, 
at least, P nivea is decidedly less higharctic than P. pulchella and P. ruhricauhs. 
140. Potentilla Vahliana, Lehm. 
P. nivea, Bkown, Chlor. Melv. (ex parte), Hooker, App. Pabry II (ex parte). 
Distribution. King William Land: Gjöa Harbour, Lindström, Hansen (CH); 
[Boothia Felix ? John Ross (NHM); Mel ville Peninsula: Igloolik (SH, NHM). Parrt, 
south shore of Fury and Hecla Strait (KH, CH), Parry, Hooper (LS), Barrow River, 
Parry (CH), Hooper (LS), Repulse Bay, Parky (CH), Duckett Cove, Parry (CH) ; Sout- 
hampton Island: Cape Welsford, Hooper (LS)]; Baffin Land: Cumberland Gulf, (SH). 
Taylor (KH), GiESE(ex Ambronn, Kingua), Cape Searle, Tay.or (NHM KH)»ng, 
BoA8(ex Ambronn 1 c) Scotts Bay, Taylor (Pl. Baff.); Melville Island (KH), herb. 
Menzies (LS); Heiberg Island: Hyperite Point, Schki (ex Simmons. Stray C^ntr.); 
Ellesmereland: Goose Fjord at Wolf Valley, Midday Knoll, Ptarmigan Gorge, 
Gallows Point Simmons, Discovery Harbour, Hart. 
Geographic area. Western Greenland, arctic parts of North Amenca, 
Rocky Mountains. . . 
Some of the above records are doubtful, as 1 have seen no speennens, espec.ally 
I am inclined to think that some part ot A«bbo.™s material has represented P. 
er^arginata instead, as he speaks of it as occurring .auf kahlen troekenen Kels- 
partien. and mentious differences between the specimens lie had to examme. 
