DICOTYLEDONOUS PLANTS. 



HAB. Cultivated grounds. Penn. June. <1>. & tem about 2 feet 

 high, branched above. Flowers numerous, in corymbs, small, 

 yellow. Pouch on a long pedicel. Introduced. 



Gold of Pleasure. 



10. SUBULARIA. Linn. 



Pouch oval ; dissepiment elliptical ; valves convex ; celh 

 many seeded. Stigma sessile. Cotyledons incumbent, lin- 

 ear, 2-plicate. Tetr adynamia. Siliculosa. 

 S. aquatica linn. 



HAB. Margins of ponds. N. S. July. Q. Scape I 2 inches 

 high. Radical leaves entire, subulate 10 lines long, 

 white, in corymbs. 



Flowers 

 Awl-wort. 



11. LUNARIA. Lbm. 



Pouch pedicellate, elliptic or lanceolate ; valves flat. Fun- 

 ides long, adhering to the dissepiment. Calyx somewhat 

 bisaccate. Petals nearly entire. Stamens not toothed. 



Tetr adynamia. Siliculosa. 



/ binmis De Cand. : pouch elliptical, obtuse at each end. 

 HAB. Fields. Penn. May, June. $ . Naturalized near Phila- 

 delphia. Nutt. 



Div. II. SILIQUOSjE. 



12. DENTARIA. Linn. 



Pod lanceolate ; valves flat, nervefcss, often opening 

 elastically. Seeds ovate, not margined, in one row. 



Tetradynamia. Siliquosa. 



1 . D. laciniata Mvhl. : leaves in threes, verticillate, on short petiole*, 

 ternate ; leafets 3-parted r segments linear, entire, or coarsely toothed ; 

 root moniliform. D. concatenate Mich, 



HAB. Woods. Throughout the U. S. but rather rare. April, 

 May. If.. Stem 8 inches high. Flowers in terminal racemes, 

 paie rose coloured or nearly white. Petals oblong. 



8. D. diphyUa Mich. : leaves mostly 2, on short petioles, ternate ; 

 leafets ovate-oblong, unequally and coarsely serrate or laciniate. 



HAB. Woods. Throughout Can. and U. S. May. U-Stem 

 6 10 inches high. Leaves large. Fhnccrs white, larger than the 

 preceding. Toothicurt. 



3. D. keterophylla Nutt. : stem 2-leaved ; leaves ternate, petiolate ; 

 leafets linear, sub-lanceolate, acute, entire, margin rough ciliate ; radi- 

 cal leafets ovate-oblong, incisely and coarsely toothed. 



HAB. Woods. Penn. June. If. Root tuberous. Corymb about 

 9-flowered. Flowers pale purple, about the ize of those of 

 Cardaminepratensis. The smallest of the genua. 



