CENT. X1II. 165 
tis, stipulis ovatobl. subintegris, foliolis obl. vel 
cuneatis crenatis obtusis, pedunc. axil. et term. 
cal. subeq. ellipt. obtusis, petalis obov. integris 
cal, eq.—Labrador, very distinct from last by 
smoothness, leaves and calix, stem 8-10 inches, 
folioles uncial, petals pale yellow, pistils red. t 
1209, Pot. canadensis O. all over North 
America, very variable and parent of the next 
probably. 
1210, Pot. simplex Mx. caroliniana Poiret. 
North Am. hardly different from last, not ra- 
mose, less silky. 
1211, Pot. argentea L. Europe, Sibiria and 
Canada, several sp. are blended with it, this is 
erect, leaves quinate pinnatifid, stipules broad. 
1212, Pot. argyrops Raf. (cinerea Raf. 1817 
non Villars) prostrata vel assurgens,caulib. filif. 
apice cinereis paucifl. fol. subt. cinereis tomen- 
tosis, stipulis subulatis, foliolis 3-5 cuneatis lin- 
earib. apice 3fldis vel cristatis, fl. dichot. bract. 
linearib. cal. toment.—New England and New 
York, perennial, small, 3 to 6 inches, leaves 
minute slender, fl. small: deemed P. argentea 
by our botanists. 
1213, Pot. multifida L. O. Alps and Sibiria, 
very distinct, yet sent me also as P. argentea! 
1214, Pot. nepalensis Raf. pilosa, erecta, 
fol. 3-5natis, stipulis adnatis ovatis acum. inte- 
gris, foliolis sessil. obov. serratis, fl. brevi pedic. 
calib. subeq. obl. acum. petalis eq. obcord— 
Asia in Nipal and Himalaya Mts. with the 
next, names from gardens, not seen described 
any where: this appears to represent in Asia 
our P. canadensis, flowers yellow. 
1215, Pot. atrosanguinea Raf.(quid ?) caule 
erecto compresso tortilis furfuraceo, fol. terna- 
tis, radic. longe petiol, foliolis sess. ovatis ser- 
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