roTENTiLLA, ICOSANDRIA. POLYGYNIA. 499 



much smaller, lanceolate ; interior broad-ovate, acuminate. 

 Petals dark purple, scarcely half the length of the calyx. Rc- 

 cefitack ovate, spongy, villous, at length covered with the 

 calyx. 

 Hab, In swamps. In New-E'igland, and the northern and 

 western parts of New-York and Pennsylvania ; common. June. 



11. P. petins'jivanica L. : erect, very soff, and somewhat 

 \yhitish-villous ; leaves pinnate; leaflets oblong, obtuse, sub- 

 pinnatifid, woolly ; panicle straight, many-flowered ; segments 

 of the calvx semi-oval. L e h m. Potent, p. 33. fV i 1 1 d. 

 Spec. II. p. 1099. J acq. Hart. t. 189. Mich. Fl. I. p. 

 304. PwrsA FA I. p. 356. G m cL FL Slb.\\\. t. M. 

 f . 1 ? 



Hoot perennial, ligneous. Whole plant covered with soft hairs. 

 Steins numerous, simple, erect, straight, a foot and a half or 

 more in height. Leaves interruptedly pinnate ; the inferior on 

 long petioles ; larger leaflets 9— 15, oblong, incisely serrate ; 

 the upper pair confluent at the base ; stem leaves with 3 — 5 

 leaflets. Slijiules lanceolate, amplexicaul, entire, or rarely 

 cleft. Flowers in a terminal panicle, more or less pedicellate. 

 Calyjc woolly; exterior segments linear-lanceolate; interior 

 ovate, acuminate, petals obovate, a little longer than the 

 calyx, emarginate or obcordate. Recefitacle ovate, conic, 

 ./^cmes rugulous. Lehm. 



Hab. In Canada and New-England. Pursh. In Pennsyl- 

 vania. Mu hlenber g. July — August. 



I consider thi* an obscure species, having never seen a 

 North-American Potenfilla at all agreeing with the descrip- 

 tion of F. fiennsylvanica as given in the books. Sir J. E. 

 Smith informs me, that P- pennsylvanica of the Linn^ean 

 Herbarium resembles P. recta in shape of leaflets and serra- 

 tures, but is pinnate and very soft-downy. 



12. P. c(,nferl>Jlnra* : viscous and very hairy; stem 

 erect, nearly simple ; leaves somewhat interruptedly pinnate ; 

 leaflets rouudish ovate, doubly and incisely dentate, oblique ; 

 iitipules ovate, acute, entire ; ilowers clustered, subsessile ; 

 leaflets of the calyx unequal, oblong, acute ; petals obovate, 

 longer than the calyx. Geum agrimonuichs Pursh Fl. I. 

 p. 351? T orrei/ Cat. pi. Mezo-York, p. 92. 



Hoot thick, fuscous. Vv'^hole plant with a dense brovnich pubes- 

 cence, and when young viscid. Stems numerous, aL..:>ut 2 feet 

 high, terete, striate. Leaves mostly in tufts about the root, on 

 very long petioles ; leaflets 5—7 pairs, an inch and a half or 

 more in length, ofLtn witli foliaceous bracts or minute leaflets 

 at tiic bas(', coarsely and doubly serrate ; the sen-atui-cs rather 

 obtuse. Flowers crowded in a terminal pariicle, nearly sessile. 

 Exterior segments of the caly^ ovate-lanceolate, subiucised ; 

 the iniviiur ovate and acute. Petals yellowish-white. 6'm- 



