DICOTYLEDONS. — CRUCIFER^. Erysimum. 289 



5. A. Turrita, leaves amplexicaul, pods recurved flat and linear 

 with the margins incrassated, bracteas foliaceous. p. 200. 



13. TURRITIS. 



Po^ elongated, 2-edged; valves nerved and keeled. Seeds m 2 

 rows. Cotyledons accumbent. 



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

 caul entire glabrous, p. 200. 



14. BARBAREA. 



Poi4-edged. Co/?/ /e^07?5 accumbent. Seeds m one row. Cat. 

 erect. Small glands placed between the shorter filaments. 



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

 superior ones obovate toothed, p. 200. 



2. ^.prcecoxy lower leaves lyrate upper ones pinnatifid their seg- 

 ments linear oblong and entire. /;. 201. 



15. NASTURTIUM. 



Tod rounded (sometimes short) ; valves concave^ nerveless, not 

 carinated. Cotyledons accumbent. Co/, patent. 



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

 dentate. p. 201. 



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

 on the upjjermost leaves nearly entire, p. 201. 



S. N. lerrestre, leaves lyrato-pinnatifid unequally toothed gla- 

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



4. N. amphibium, 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 ruiicinate 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. 



Podi-s'nUcd. &e^5 not margined. Co/?/ Wo/i5 incumbent. Stigma 

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



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

 with stellato-tripartite hairs, pods nearly erect their peduncles 

 spreading, stigma undivided nearly sessile, p. 202. 



2. E. Alliariuy leaves heart-shaped petiolate dentato-crenate. 

 ■ p. 202. 



[T] 



