406 Q.2. ERSYIMUM CHEIRANTHOIDES. [CL. XV. 



liquae stand erect, are quadrangular, having the remains of 

 the simple stigma at their points, and containing the seed in 

 two row s, the radicle of the embryon being turned towards 

 the ridge of the cotyledons. 



Diagnosis and Affinity. 



The plant which most resembles this is Cheiranthus ery- 

 simoides Linn., or Erysimum hiernc'ifoUiim Linn. Ehrh. (not 

 Jacqu.), or Er. lanceolatum R. Br. But this latter plant is 

 distinguished by its liabitat being confined to dry, sunny 

 places, along the wayside, — by its erect stem, distinctly den- 

 tated leaves, and by its white flowers being larger and whiter. 

 Er. huraci folium Jacq., or odoratum Ehrh. Willd., is also 

 extremely similar, but it has commonly a simple stem, dis- 

 tinctly dentated leaves, golden-yellow flowers, w^hich have a 

 pleasant smell, circular petals, and a two-lobed stigma at the 

 end of the siliqua. Er. repandum Linn, has an almost pro- 

 cumbent stem, the flower-branches of v/hich stand opposite to 

 the leaves : it has also lanceolate, angular dentated leaves, 

 and horizontal siliquae. Er. diffusum Ehrh. has linear, 

 greyish, slightly dentated leaves, the hairs of which have 

 merely a simple cleft, and the flowers are of a pale yel- 

 low colour, and large. Er. angustrfolium Ehrh. has revo^ 

 lute, linear, sulcated, entire, greyish leaves, sulphur-yellow 

 flowers, and a long pistillum on the end of the siliqua. 



Synonymes and Figures. 



Viola lutea sylvestris, Trag. f. 212. b. 



Myagrum alter um, Thlaspi effigic, Lohcl. Hist. 112. Ic. 



225. Dalech. 1137. Amarum, Park. Theatr. 868. 

 Myagro affinis planta, siliquis longis, J. Bank. Hist. 2. 894. 

 ? Erysimon in. Tabern. 840. (It may also, however, be 



Cheiranthus ery simoides). 

 Camelina, Ger. em. 273. 



Eruca sylvestris, Thlasplos effigic, Moris, sect. 3. t. 5. 

 Turritis leucoii folio, Tourn, Inst. 224. 

 Erysinuun cheiranthoidcs, Linn. Willd. Sp. PI. 3. 51 L 



