t,:iUM, ICOSANDRIA. POLYGYNIA. 493 



subequal ; petals oval, as long as the calyx. P u r s h F/. I. 

 p. 351. 



Flowers white. Ph. 



Hab. Oil the rocky banks of the Susquehannah, Pennsylvania. 

 F ur s h. 



This, to me, is a doubtful species. I strongly suspect it is 

 the PoTENTJLLA coufertiflora of this work. 



3. G. virginianum L. : pubescent; radical and lower 

 cauline leaves ternate ; the upper lanceolate; stipules ovate, 

 nearly entire; flowers erect ; petals shorter than the calyx ; 

 £iwns uncinate, naked, hairy, and twisted at the summit. 

 JFi I Id. Spec. M [>. 11)3, .^ i t. Kew. U. p. '2\1 . Murr, 

 Comm, Goett. VV'p. 32. t. 32. Mi c h. FL I. \). SO]. Pursk 

 Fl. 1.^.351. Big. Bost. Y>. 125. E lliott Sk. I. }p. 

 pT2. Gron, Virg.b^. C o I d. Noveh. \2^> 



Root perennial. Stem erect, about 2 feet high, branched above, 

 hairy. Lower leaves large, mostly ternate, sometimes quinate % 

 the upper ones simple, S-lobed, and 3-cleft ; leaflets ovate- 

 lanceolate, incised and coarsely serrate. Stifmles large, ovate, 

 with several large teeth. Flowers on long peduncles, termin- 

 ating the branches, at first nodding, at length erect. Calyx 

 somewhat hairy ; 5 ot the segments ovate, acute ; the other 

 5 linear, and very minute. Petals yellowish-white, obo^ate, a 

 little shorter than the calyx. Seeds hairy, awned with the per- 

 sistent style, v/hich is tortuous at the summit. 



Hab. In woods and thickets. June— July. 



4. G. album Willd.: pubescent; radical leaves pin- 

 pate ; stem leaves ternate ; the upper one simple, 3-cleft ; 

 lower stipules incised; flowers erect; petals as long as the 

 calyx ; awns uncinate, naked, hairy at the summit. W illd. 

 .Enum. p. 556, P ur s h Fll. 1^. 3b\. Elliott Sk.]. 

 p. 572. 



Flotvers white. 



Hab. On the banks of rivers. Pennsylvania to Carolina. 

 Pursh. June^-July9 



5. G. rivah L. : pubescent ; stem simple ; radical leaves 

 snterrnptedly pinnate ; cauline ones 3-cleft: flowers nodding ; 

 petals as long as the calyx ; awns plumose, nearly naked at 

 the summit, mitiutely uncinate. Willd. Spec. II, p. II I5« 

 Smith Fl. Brit. II. p. 554. Eng. Bot. t. 172. Mich. 

 J7. 1. p. 301. Pursh Fl.l. p. 35\. Big. Bost. p. 125. 



i?oo^ perennial, horizontal. S/e7« a foot and a half high, erect, 

 terete, minutely and retrorsely pubescent, sparingly branched 

 at the summit. Radical leaves interruptedly pinnate or some- 

 what lyrate j the terminal leaflet large, lohed, or 3-cleft ; the 

 rest very small ; all of them coarsely serrate and hairy on 



