Sisymbrium.] CRUCIFERJE. -•'» 



leaves fleshy, pinnatifid, somewhat toothed. Br. Fl. \.p 293. 

 E. Fl. v. iii. p. 183. — Bimias Cakile, Linn. — E. JBot. t. 231. 



Sandy sea-shores, frequent. Fl. June, July. — Bushy. Branches 

 crooked, and, as well as the whole plant, succulent. Flowers pur- 

 plish. Pouch thick, fleshy, at length somewhat woody. 



Suborder Notorhize^e. De Cand. Oil 



Cotyledons flat, incumbent. Radicle lying upon the hack of the 

 cotyledons. Seeds ovate, not bordered. 



Tribe V. Sisymbriea. De Cand. 



Siliqua two-celled, dehiscing lengthwise. Valves concave or keeled. 

 Seeds ovate or oblong, not bordered. Cotyledons flat, incumbent, at 

 right angles with the septum. 



1 1 . Hesperis. Linn. Dame's Violet. 



Pod 4-sided or two-edged. Stigma nearly sessile, the lobes 

 connivent. Cotyledons incumbent (O II )> plane. Cal. erect. 

 Br. — Named from ecnrepw}, the evening ; at which time the 

 flowers yield a powerful fragrance. 



Tetr adynamia. Siliquosa. 



1. H. matronalis, Linn. Common Dames Violet. Stem 

 erect; leaves ovato-lanceolate, toothed; limb of the petals 

 obovate ; pods erect torulose their margins not thickened. Br. 

 Fl. 1. p. 307. E. Fl. v. iii. p. 207. — H. inodora, Linn. — 

 E. Boh t. 731. 



Hilly pastures, but often the outcast of gardens. Fl. May, June. 

 %. — In a meadow close to Knocknahatna, near Oldcastle, County of 

 Cavan ; Rev. N. J. Halpin ; who says, " I have observed this plant 

 growing for ten years — at first I found it all through the field, but by 

 constant mowing it is now confined to the ditch. There are no gardens 

 near from which it could have escaped." The double purple rocket of 

 the gardens is a variety of this. The double white rocket of the gar- 

 dens appears to belong to another variety, common in gardens, with 

 larger and lighter coloured flowers. 



12. Sisymbrium. Linn. Hedge Mustard. 



Pod rounded or angular. Cotyledons incumbent (O || ) (some- 

 times oblique), plane. Calyx patent, sometimes erect. Br. — 

 Name atavf.ifti>tbv ; given by the ancients to some plant, per- 

 haps allied to this. Tetradynamia. Siliquosa. 



1. S. officinale, Linn. Common Hedge Mustard. Pods 

 subulate, pubescent, close pressed to the main-stalk ; leaves mu- 

 ricate, hairy ; stem hispid. Br. Fl. 1. p. 305. E. Fl. v. iii. 

 p. 196. — Erysimum officinale, Linn. — E. Bot. t. 735. 



