8 Rhodora [JANUARY 
the coastal regions of Labrador and Alaska and the islands of Bering 
Sea (fig. 3), the elliptic to cuneate-obovate subtruncate or round- 
tipped leaflets being 1.3-4.5 (av. 2.75) em. long and 0.9-2.5 (av. 1.5) 
cm. broad, ranging from 3 —} as broad as long. 
The other noteworthy variety, Potentilla palustris, var. villosa has 
already been referred to. In this plant the petioles, stipules, pedun- 
cles, bractlets, etc. are densely glandular-villous and the leaflets are 
villous or very densely sericeous. "The plant (fig. 4) was figured and 
described by Plukenet! in 1692 from Sweden and Ireland; was taken 
up by Linnaeus in his Flora Lapponica as an unnamed variety “rarius 
observatur & plane non differt a naturali planta" ;? was recognized 
without discussion by Persoon as Comarum palustre, B villosum; ? 
and was later transferred by Lehmann * to Potentilla. 
That Potentilla palustris, var. villosa is a rare plant in Europe is 
indicated by the citation of specimens by European monographers. 
Plukenet, upon whose figure and description the variety rests, said 
that the plant came from Sweden and Ireland; but in his Revisio 
Potentillarum Lehmann omitted the Swedish citation and referred to 
the plant only “in Groenlandia et Hibernia”; while Wolf, in his 
monumental Monographie der Gattung Potentilla, states that it appears 
to be a subarctic plant which Lehmann knew only from Greenland 
and Ireland, though J. Lange says in his Conspectus Florae groen- 
landicae that he has not seen it from Greenland but from Iceland. 
Wolf goes on to say that in an old English herbarium he has seen the 
plant from “Canada, Distrikt Cartwrigt [Cartwright, Souris Co., 
Manitoba] (leg. W. Scott 1891).” 7 With the exception of the Cart- 
wright record and the old but perhaps erroneous report from Greenland, 
there seems to have been no suggestion that the plant occurs in North 
America until the notes published in Rnopona4 in 1909 and 1910; 
but the range of the plant in North America, from the Magdalen 
Islands, Nova Scotia, and Maine to Minnesota and Manitoba, indi- 
cates that, with us at least, it belongs to the Canadian rather than the 
subarctic zone. 
1 Pluk. Phyt. t. cexii. f. 2 (1692). * Pers. Syn. ii. 58 (1807). 
3 L. Fl. Lapp. 172 (1737). 1 Lehm. Stirp. Pug. ix. 44 (1851). 
$ *! Pentaphyllum palustre rubrum, crassis, & villosis foliis Suecicum, & Hibernicum. 
hujus exemplar ez Suevia sibi allatum. nobis dedit Reverend D. Stonestreet, quod etiam 
Ornatissimus Vir D. Gideon. Bonavert ez Hibernia (qua invenit) rediens, nobis amicis- 
sime communicavit."— Pluk. Phyt. t. ccxii. f. 2 (1692). 
* Lehm. Revis. Pot. 74 (1856). 7 Wolf, Mon. Pot. 76 (1908). 
