224 POLYANDRIA.—POLYGYNIA. 



HAB. Swamps. June— Aug. Stem 3— b ft. high .; 

 Ji. in large pan., wh. 



5. T. purpurascens : leaves compound, shorter than 



the stem ; leaflets roundish, 3-cleft and incised : 

 panicles nearly leafless ; flowers cernuous ; sta- 

 mens coloured. 

 HAB. Dry hills. May— June. U . Plant small ; 

 stem and flam, purp. -f*» 



** Stamens shorter than the petaloid calyx. 



6. T. anemonoides : root tuberous ; flowers umbelied ; 



floral leaves petiolate, resembling an involucrum ; 

 flowers perfect ; calyx 8 — 10-leaved. 

 HAB. Woods. April— May. U . Stem 6—8 in. 

 high ; leaji. smooth ; Jl. large, wh. 



361. HYDRASTIS. Yellow-root. Ranunculacev. 



H. canadensis. 



HAB. Rocky woods. May. U. Stem 6 in. high, 

 1 — 2-leav. ; leav. incis., pubes. ; Jl. solit., red-wh., 

 fr. fleshy, red. 



362. CALTHA. Marsh-marigold. Ranunculaceoe. 



}. C. palustris : stem erect; leaves cordate, subor- 

 bicular, obtusely crenate. 

 HAB. Swamps. April— June. If. Afoot high, 

 dichot. ; leav. petiol. ; Jl. large, yellow. 



2. C. integerrima : stem erect, corymbed ; leaves or- 

 bicular-cordate, very entire, with the sinus closed ; 

 floral ones sessile, reniform, obscurely crenate at 

 the base ; leaflets of the calyx obovate. 

 HAB. Wet meadows, &c. May— July. U. Fl. 

 corymb., smaller than in No. 1. 



:■;. C. parnassifolia : stem erect, 1-flowered, 1-leaved ; 

 radical leaves, cordate-ovate, very obtuse ; many- 

 nerved ; leaflets of the calyx elliptical. 

 HAB. Cedar swamps. June — July. V-. Fl. mid- 

 dle-sized, deep yellow. 



U C. Jlabellifolia : stem procumbent, many-flowered; 

 leaves dilated-reniform ; lobes widely spreading, 

 acutely dentate ; leaflets of the calyx obovate : 

 capsules uncinate. 



