248 TETRAD YN AMIA.— SILIQJJOSA. 



sessile, nearly smooth ; silicle elliptical, pubescem 

 shorter than the pedicel. 

 HAB. Rocks. May. U . Stem 6 in. high ; pules, 

 thin ; style long, persist. 



414. LEPIDIUM. Pepper-wort. Cruciferat. 



1. L. virginicum : leaves linear-lanceolate, incisely ser- 



rate, smooth ; flowers with 2 — 4 stamens ; silicle 

 orbicular, emarginate ; stem branched above. 

 HAB. Sandy fields. June— Oct. 0. Afoot high, 

 panic, above ; fl. minute, wh. 



2. L. campestre : cauline leaves sagittate, dentate ; 



silicle ovate, winged, emarginate, scaly-punctate. 

 HAB. Hills. May. 0. Afoot high, erect ; leav. 

 pules. ; ft. wh. 



415. CAMELINA. Cruciferce. 



C. sativa : silicle obovate-pyriform, margined, tip- 

 ped with the pointed style ; leaves subentire, Ian 

 ceolate, sagittate. 



HAB. Hills. June. ©. Stem \\ ft. high, branch. : 

 ft* yell., corymb. 



416. SUBULARIA. Owl-wort. Crucifem. 



' S. aquatica. 

 HAB. Margins of ponds. July. ©. Leav. rad> 

 subul. ; scape 1 — 2 in. high ; fl. wh. 



SILIQUOSA. 



4 IT. DENTARIA. Toothwort. Crucifera. 



1. D. laciniata: leaves in threes, ternate ; leaflets 3- 

 parted ; segments oblong, unequally and incisely 

 dentate ; root moniliform. 

 HAB. Rocky woods. April — May. Stem 8 in* 



high ; root tub. ; ft. purplish. 

 /S. pinnatifida: leaflets subpinnatifidly laciniate. 

 .', D. diphylla : stem 2-leaved ; leaflets ternate, sub 

 ovate, unequally and incisely dentate : root dentate 



