20 CRUCIFER^E. [Draba. 



6. CARDAMINE. Linn. Lady's-smock. 



Pod linear, the valves flat, generally separating elastically, 

 nerveless. Seed stalks slender. Cotyledons accumbent (Om ). 

 Name, Kap&ia, the heart, and Sa/jiau}, to fortify : from its sup- 

 posed strengthening qualities. 



Tetradynamia. Siliquosa. 



1. C. amara, Linn. Bitter Lady s- smock. Leaves pinnated ; 

 radical leaves roundish; cauline ones dentato-angulate ; style 

 oblique ; stigma rather acute ; stem rooting at the base. Br. 

 Br. Fl. 1. p. 302. E. Bot. t. 1 000. E. PL v. iii. p. 190. 



Wet meadows near Toom Bridge, and by the side of the Mayola 

 river, near Castle Dawson ; Mr. JD. Moore. Fl. April June. 3JL . 

 One foot high. Well distinguished from the following by the broad 

 angula to-dentate leaflets of its upper leaves, and the large white 

 flowers, and purple anthers. 



2. C. pratensis, LINN. Common Lady s- smock. Leaves pin- 

 nate, radical leaflets roundish, dentate, cauline ones lanceolate, 

 nearly entire ; style straight ; stigma capitate. Br. FL 1. p. 

 302. E. Fl. v. iii. p. 189. E. Bot. t. 776. 



Wet meadows, abundant. Fl. May. 1. One to two feet high. 

 Flowers large, blush coloured ; sometimes found double, in which state 

 the leaflets are known to produce new plants, when they come in con- 

 tact with the ground, while still attached to the parent plant. 



3. C. hirsuta. Linn. Hairy Lady' s- smock. Leaves all pin- 

 natifid, and without stipules ; leaflets petiolate ; radical ones 

 roundish ; stamens 4 6, equal in length to the petals ; stigma 

 nearly sessile. Br.Br. Fl. 1. p. 302. E. Fl. v. iii. p. 188. 

 E. Bot. t. 492. Cardamine flexuosa, With. 



Moist shady places, abundant; very common near Dublin. FL 

 March June. Q. Varying much in size and luxuriance, according to 

 soil and situation. From four inches to one foot and more in height. 

 Leaflets more or less angled, or toothed ; upper ones ovate, or even 

 linear, hairy or glabrous. Flowers small, white. 



Tribe II. Alyssinece. De Cand. 



Silicula dehiscing longitudinally. Septum broad, oval, membranous ; 

 valves flat or concave. Seeds compressed, often bordered. Cotyledons 

 flat, accumbent, parallel with the septum. 



7. DRABA. Linn. Whitlow-grass. 



Pouch entire, oval or oblong ; valves plane or slightly convex, 

 cells many-seeded. Seeds not margined. Cotyledons accum- 

 bent. (On:.) Filaments simple. (Draba and Erophila, 

 De Cand.) Named from Spafiij, acrid, as are the leaves of 

 many of this tribe. Tetradynamia. Siliquosa. 



