DICOTYLEDONS. cKUcrFEiuE. Draba. 287 



1. L. latifolium, leaves lanceolate undivided serrated or entire, 

 pouch oval entire, p. 194. 



2. L. rudcrale, flowers diandrous apetalous, radical leaves pin- 

 natifid those of the branches linear entire, pouch emarginate 

 patent, p. 194. 



3. L. campestre, pouch ovate emarginate winged rough with 

 minute scales, style scarcely longer than the notch, cauline 

 leaves sagittate toothed, p. 195. 



4. L. hirtum, pouch ovate emarginate winged glabrous, style 

 nearly half as long as the pouch, cauline leaves sagittate toothed. 

 p. 195. 



7. COCHLEARIA. 



Pouch subovate, many-seeded, their valves turgid. Seeds not 

 margined, their cotyledons accumbent. The shorter filaments 

 without teeth. Cal. patent. 



1. C. officmalis, pouch globose, radical leaves pctiolatc cordato- 

 reniform entire or sinuated, cauline ones sessile oblong sinuated. 

 p. 195. 



2. C. anglica, pouch elliptical, radical leaves petiolate cordate 

 entire, cauline ones mostly sessile oblong more or less toothed 

 near the base. p. 195. 



3. C. danica, pouch ovato-elliptical, leaves all petiolate deltoid. 

 p. 196. 



4. C. Armor acia, pouch oblong, stigma dilated nearly sessile, 

 radical leaves oblong (on long footstalks) crenate, cauline ones 

 elongato-lanceolate serrate or entire, p. 196. 



8. SUBULARIA. 



Pouch oval, pointless (Silk, mutica, Br.), many-seeded; valves 

 turgid. Cotyledons incumbent, linear, bipartite (licrures). 



1. S. aquatka. p. 196. 



9. DRABA. 



Pouch entire, oval; valves plane, or a little convex; cells many- 

 seeded. Seeds not margined ; cotyledons accumbent. Fila- 

 ments without teeth. 



1. Dr.ver??a, scapes naked, petals bipartite, leaves lanceolate 

 somewhat cut hairy, p. 196. 



2. Dr. rupestris, scapes naked or with one leaf, petals undivided, 

 pouch lanceolate pubescent, leaves plane lanceolate hairy, p. 1 96. 



3. Dr. hirta^ scape generally with 1 or 2 ovate dentate or entire 

 leaves, petals undivided, pouch oblong and as well as the pedi- 

 cels glabrous, leaves lanceolate plane hairy and stellato-pube- 

 scent. p. 197. 



4. Dr. incana, cauline leaves numerous lanceolate dentate hoary 

 with starry pubescence, pouch oblong somewhat twisted./?. 197. 



