ORD. II.] 21. ERYSIMUM CHEIRAXTHOlDrs. 105 



Order II. 



SiUquosa^ with long extended Sili(|u<T. 



22. 



Erysimum cheiranthoides, L. 



Leucoienartiger Hederich, Schotendotter. — French, Velar 

 girqflee. — Engl. Treacle hedge-mustard. — Swed. Akcr- 

 rym. 



This plant, the fibrous root of which lasts two years, is 

 pretty common among the shrubs of our pastures, in mea- 

 dows and moist fields. Its somewhat angular, branched, 

 ferect, leafy, herbaceous stem is furnished with mnncrous ac- 

 cumbent sharp hairs. The leaves of the stem stand alternate, 

 are lanceolate, without stalks, or lengthened into the leaf- 

 stalk, generally two inches long, and half an inch broad, fur- 

 nished with indistinguishable, scattered teeth on the margin, 

 which almost entirely disappear in the upper leaves. The 

 surface appears smooth to the naked eye ; but with a glass we 

 observe small, contiguous, three-pointed hairs. The branches 

 stand open, and carry rich bunches of flowers ; the individual 

 flower-stalks are a line and a half long; at first they are 

 erect, afterwards, when the fruit has I'ij^ened, they become 

 horizontal. The calyx consists of four lanceolate, erect, yel- 

 lowish-green pieces, furnished with a membranaceous margin : 

 the corolla consists of four spoon-shaped, more or less emar- 

 ginated yellow petals, somewhat longer than the calyx. The 

 filaments are six in number, four of which are longer than 

 the other two ; but they are all as long as the pistillum, ami 

 as the claws of the petals. The anthera* are oval, yellow, 

 and bilocular. The nectaries stand at the base of the fila- 

 ments, those on the shorter filaments being half ring.sha|xxl, 

 riiose on the longer crcnated. After flowering:, both tlie si- 



