TETRADYNAMIA.— S1LIQU0SA. 249 



IIAB. Woods. May. U . Stem 6—8 in. high; 

 leafl. large, fl. yellowish. 



3. D. heterophylla : stem 2-leaved ; leaves ternate, pe- 



tiolate, leaflets liHear, sublanceolate, acute, entire ; 

 radical leaflets ovate-oblong, incisely and coarsely 

 toothed. 

 HAB. Shady woods. June. U. Root tub. ; stem 

 low ; leafl. ciliate ; fl. purp. 



4. D. maxima: leaves numerous, alternate, petiolate ; 



leaflets ternate, suboval, incisely dentate ; lateral 

 ones lobed ; axils without glands ; racemes lateral 

 and terminal. 

 IIAB. Woods. U. Stem 1% ft. high; leav. 5—7 : 

 leafl. very broad ; fl. purp. 



413. CARDAMINE. Lady's smock. Crucifercc. 

 *. Leaves undivided. 



1. C. rhomboidea: leaves ovate-rhomboid, obscurely 



repand-dentate, smooth ; inferior ones on long 

 petioles ; root tuberous and fibrous. 

 HAB. Wet meadows. May— June. U . Stem 8— 

 10 in. high, subpubes. ; fl. large, wh. 



2. C. rotundifolia : leaves suborbicular, nearly entire, 



smooth, petiolate ; stem weak, procumbent ; root 

 fibrous. 

 HAB. High mountains. July. y. . Siliques spread- 

 ing, Slend. ; fl. sm., wh. 



**. Leaves divided. 



3. C. pennsylvanica : smooth, branched ; leaves pin- 



nate, often sublyrate ; leaflets roundish-oblong ob- 

 tuse, angularly toothed ; stem erect ; petals ob- 

 long-linear. 



IIAB. Wet places. May. July. U. Stem. 8 — 

 12 in. high; term, leafl. large; sil. erect. 



0. gracilis : stem slender, weak ; leaves with few 

 and narrow segments. 



IIAB. Wet woods. July. U . Stem subdecumb. 

 4 — 6 in. long ; fl. minute, wh. 

 I. C. virginica: smooth, erect ; leaves pinnate ; leaf- 

 lets lanceolate, subauriculate ; stem erect ; siliques 

 long, straight and erect. 



