210 ROSACEiE. Potentilla. 



6. Potentilla fruticosa, Linn. Shruhly Cinquefoil. 



Shrubby, much branched ; leaves pinnately 5 - 7-folioIale ; leaflets crowded, oblong- 

 lanceolate, entire, hairy ; petals (yellow) nearly orbicular, longer than the calyx. — Linn. sp. 

 \.p. 495 ; Engl. hot. t. 88 ; Michx. fl. \. p 304 ; Pursh,fl. \.p. 355 ; Lehm. Potent, p. 31 ; 

 Torr. fl. 1. p. 497 ; DC. prodr. 2. p. 579 ; Hook. fl. Bor.-Am. 1. p. 186 ; Torr. ^- Gr. fl. 

 N. Am. 1 . p. 445. P. floribunda, Pursh, I. c. ; Bigel. fl. Bost. p. 203. 



A shrub about 2 feet high, with reddish brown branches. Leaves very numerous, on rather 

 short petioles : leaflets usually only 5, but sometimes 7, usually about ihree-fourths of an 

 inch long, but often much larger, pale and more hairy underneath ; the 3 upper ones more or 

 less confluent : stipules scarious, very acute, pubescent. Flowers numerous, 2 or 3 at the 

 extremity of each branch, large. Calyx-segments and bracteoles of nearly equal length ; the 

 former yellowish and broader. Disk villous. Petals about one-third longer than the calyx. 

 Ovaries (and also the receptacle) very villous : style filiform, inserted near the base of the 

 ovary. 



Bog meadow.-j ; Orange county ; Yates county {Dr. Sartwell). June. 



7. Potentilla Anserina, Linn. Silver-weed. Wild Tansey. 



Stem creeping ; leaves interruptedly pinnate ; larger leaflets 7-15 or more, oblong, 

 pinnatifidly serrate, silvery-canescent underneath ; stipules many-cleft ; pedicels scape-like, 

 solitary, as long as the leaves. — Linn. sp. 1. p. 495 ; Engl. hot. t. 861 ; Michx. fl. 1. p. 304 ; 

 Pursh, fl. 1. p. 356; Lehm. Potent, p. 71 ; Torr. fl. 1. p. 498 ; Bigel. fl. Bost. p. 203 ; 

 DC. prodr. 2. p. 582 ; Hook. fl. Bor.-Am. 1. p. 189 ; Beck, hot. p. 107 ; Ton: tj- Gr. fl. 

 N. Am. 1. p. 444. 



Root perennial. Stem throwing out long slender creeping stolons, which produce a tuft of 

 leaves and one or more pedicels at each joint. Leaves sometimes very silky and white on 

 both sides, but commonly green and nearly smooth on the upper surface and white underneath : 

 leaflets an inch or more in length ; the intermediate ones very small : petioles varying in 

 length. Bracteoles rather shorter and narrower than the segments of the calyx. Petals bright 

 yellow, broadly obovate, twice as long as the calyx. Ovaries smooth : style lateral, filiform. 

 Receptacle villous. 



Wet meadows, borders of ponds, etc. Shores of the Hudson ; Lake Ontario ; salt marshes 

 of Long Island, &c. June - October. 



