DICOTYLEDONS. CRUCiFER/E. Erijswmm. 289 



5. A. Turrit a 9 leaves amplexicaul, pods recurved flat and linear 

 with the margins incrassated, bracteas folia ceo us. p. 200. 



13.TURRITIS. 



Pod elongated, 2-edged; valves nerved and keeled. Seeds in 2 

 rows. Cotyledons accumbent. 



1. T. glair a, radical leaves dentate hairy, cauline ones amplexi- 

 caul entire glabrous, p. 200. 



14. BARBAREA. 



Po<^4-edged. Cotyledons accumbent. Seeds in one row. Cal. 

 erect. Small glands placed between the shorter filaments. 



1. B. rulgaris, lower leaves lyrate the terminal lobe rounded the 

 superior ones obovate toothed, p. 200. 



2. B.prczcox, lower leaves lyrate upper ones pinnatifid their seg- 

 ments linear oblong and entire, p. 201. 



15. NASTURTIUM, 



Pod rounded (sometimes short) ; valves concave, nerveless, not 

 carinated. Cotyledons accumbent. Cal. patent. 



1. N. officinale, leaves pinnate, leaflets ovate subcordate sinuata- 

 dentate. p. 201. 



2. N. sylvestre, leaves pinnate, leaflets lanceolate incised those 

 on the uppermost leaves nearly entire, p. 201. 



3. N. terrestre, leaves lyrato-pinnatifid unequally toothed gla- 

 brous, root simply fibrous, petals not longer than thecal.p.201 . 



4. N. amphilium, leaves oblong pinnatifid or serrated, root sim- 

 ply fibrous, petals longer than the cal. p. 201. 



16. SISYMBRIUM. 



Pod rounded or angular. Cotyledons incumbent (sometimes ob- 

 liquely), plane. Cal. patent (sometimes nearly erect). 



1. S. officinale, pods subulate pubescent close pressed to the main 

 stalk, leaves runcinate hairy, stem hispid, p. 202. 



2. S. Sophia, leaves doubly pinnate a little hairy, pinnules linear 

 terminal one the longest, petals shorter than the cal. p, 202. 



17. ERYSIMUM. 



JW4-sided. Seeds not margined. Coly ledons incumbent. Stigma 

 capitate, sometimes notched, with the lobes patent. Cal. closed. 



1. E. cheiranthoides, leaves lanceolate entire or slightly toothed 

 with stellato-tripartite hairs, pods nearly erect their peduncles 

 spreading, stigma undivided nearly sessile, p. 202. 



2. E. Alliaria, leaves heart-shaped petiolate dentato-crenate. 

 p. 202. 



[T] 



