PENTANDPJA.— DIGYNIA. 129 



HAB. Low grounds, June— Aug. 0. Stems filifl, 



orange, parasit., twining ; fl. in dense dust. 

 C. europcea : flowers sessile ; corolla 4 — 5-cleft, 



without scales at the base of the stamens ; stigmas 



simple. 

 HAB. Parasitic on flax. July. 0. Stems fllif, red, 



twining ; fl. yell., tampan. 



194. HEUCHERA. Alum. Saxifragce. 



H. americana : viscidly-pubescent ; scape and leaves 

 a little scabrous ; leaves with rounded lobes, den- 

 tate ; teeth dilated, obtuse, mucronate ; panicle, 

 dichotomous ; calyx short, obtuse ; petals lanceo- 

 late, as long as the calyx. 



HAB. Shady rocky places. June— July U . Leav. 

 rad. on long pet. ; scape 2 — 3 ft. long. ; fl. purp. 



H. pubescen : pulverulent-pubescent ; scape smooth 

 below ; leaves somewhat acutely lobed, smooth 

 beneath, toothed ; teeth rounded, mucronate ; pe- 

 duncles short, with crowded flowers ; calyx large, 

 campanulate ; petals longer than the calyx ; sta- 

 mens scarcely exsertH. 



HAB. Mountains. V-- Leav. with broad teeth ; scape 

 2ft. long, scab above ; pet. red and yell. 



195. PANAX. Ginseng. Araliai. 

 P. trifoHum: leaves ernate ; leaflets subsessile ; 



styles o ; bern tricor.cous ; root globose. 

 HAB. Moist wood | I- tfay. h . Root tub. r 



stem 4—8 . high; leaf, ob long- Ian. ; fl. white; 



her. gree . 

 "P. quinqvefolium : leaves in threes ; leaflets quinate. 



p, tiol ate ; peduncles shorter than the petioles ; 



iooi fusiform. 

 HAB. Mountains. July. U. Root long , wrinkled ; 



stern I ft. high ; fl. greenish ; her. renif., scarlet. 



190. ATRIPLEX. Orache. Chenopodea. 

 A. hortensis : stem erect, herbaceous ; leaves trian 

 gular, dentate, green on both sides ; fructiferous 

 vx ovate, reticulate, entire. 

 HAB. Waste places, &c. July— -Aug. ©. Stem 3 — \ 

 ft. high, green ; fl. green, in interrvp. spike*. 



