66 TETRADYNAMIA. SILiqiTOSA. 



Roots tuberous, tubercles dento id; leaves ternate, rare- 

 ly digitate or pseudopinnate, opposite, alternate, or in 

 threes. Stems scapiform, simple; flowers dilute purple, 

 rarely yellowish. Mr. R. Brown in Hort. Kew. 4. p. 101. 

 unites this genus with Cardamine and probably witli pro- 

 priety; at the same time the habit of Detitaria is very dis- 

 tinct. 



Species. 1. D. laciniata. Leaves in 3s, ternate, leaf- 

 lets 3-parted, oblong, unequally and incisely toothed, 

 margin naked; root moniliform. 2. diphylla. Stem 2- 

 leaved, leaflets ternate, ovate-oblong, unequally and in- 

 cisely toothed; root dentate; flowers yellowish. 



3. * heterophylla. Stem 2-leaved, leaves ternate, petio- 

 lale, leaflets linear, sublanceolate, acute, entire, margin 

 asperate, ciliate; radical leaflets ovate-oblong, incisely and 

 grossly toothed. Had. In western Pennsylvania; (in the 

 shady Fir woods on the banks of VVishahikon creek, 

 a few miles from Philadelphia.) Obs. The smallest spe- 

 cies with which I am acquainted. Root concatenately 

 and also simply tuberous, tubers oblong, dentoid. One ra- 

 dical leaf always present upon a long petiole arising 

 from the base of the scape, deeply toothed, dentures ob- 

 tuse, witii a small abrupt point; cauline leaflets very rare- 

 ly subserrate, generally entire, invariably cdiated, nearly 

 linear, more than an inch long, and only about 2 lines 

 wide. Corymb small, about 9-flowered; flowers pale pur- 

 ple, nearly the size of those of Cardamiiie pvaiensis, petals 

 oblong, entire, longer than the stamina. Fh)wering in 

 June. Figure Pluk. Amalth. t. 435. f. 2. ? but in this 

 figure the leaves are a little toothed. 4. tenella. Ph. Leaves 

 sessile, entire. — Columbia river. 5. * maxima. Stem tall, 

 leaves usually many, alternate, ternate, axills naked, leaf- 

 lets suboval, incisely and acutely toothed, lateral ones lob- 

 ed; racemes lateral and terminal. Hab. In the western parts 

 of the state of New York, and Pennsylvania. Obs. Stem 

 often near 2 feet high. Tubers concatenate; leaves alter- 

 nate, remote, 5 to 7, margin a little asperate; petioles 2 

 inches or more; leaflets nearly as broad as long; ra- 

 cemes many -flowered, flowers pale purple, petals oblong- 

 oval, longer than the stamina. Style longer than the 

 germ. 6> multifida. Muhl. Catal. 



A small genu?, almost exclusively indigenous to the 

 mountainous parts of Europe, and North America. 



458. CARDAMINE. i. (Ladies'-smock.) 



Silique long, opening elastically, the valves 

 mostly revoliite and equal with the dissepiment. 



