ERYSIMUM.] CRUC1FERJE. 31 



leaves never auricled, and hairs 2-3-pavtite ; differs from CJieiranthus in 

 the cotyledons, and generally in the stigma. 



E. cheiranthoi des, L. ; leaves lanceolate, pods short suberect. 

 Waste places from Mid. England southd., a casual north of it ; rare in Ire- 

 land; (a colonist, Wats.} ; fl. June-Aug. Annual. Stem 1-2 ft., erect leafy 

 rigid terete. Leaves 3-4 in., subsessile, lanceolate or oblong-lanceolate, 

 acute, narrowed at the base, obscurely toothed. Flowers 5 in. diam. Pods 

 1 in., straight; pedicel spreading; valves strongly keeled, acute; style 

 very short stout, stigma truncate ; seeds oblong, smooth, very strong-tasted. 

 DISTRIB. Europe (Arctic), N. Africa, N. Asia, 1ST. America. 



8*. HES'PERIS, L. DAME'S VIOLET. 



Erect, biennial or perennial herbs. Leaves alternate, entire. Flowers 

 large, handsome. Sepals erect, lateral gibbous at the base. Petals clawed. 

 Pods elongate, terete or 4-angled ; valves flattish, keeled, 3-nerved ; septum 

 membranous ; stigmatic lobes suberect. Seeds many, margined or not ; 

 cotyledons incumbent. DISTBIB. Europe and temp. Asia ; species 20. 

 ETYM.4'<77repos, from some species being odorous in the evening. Very near 

 Matthiola and Cheiranthus, differing chiefly in the stigmas and embryo. 



H. MATBONA'LIS, L. ; pubescent, leaves oblong-lanceolate acuminate. 

 Meadows, plantations, &c., rarely even naturalized; fl. May-July. Perennial, 

 hairs simple or branched. Stems 2-3 ft., erect, stout, leafy. Leaves 2-5 in., 

 shortly pitioled or sessile, finely irregularly toothed or serrate. Flowers 

 | in. diam., white or lilac, odorous in the evening, proterandrous ; pedicel 

 \ in., spreading. Pods 2-4 in., slender, cylindric, constricted here and there 

 between the remote seeds ; pedicel ascending; valves much narrowed at the 

 tip ; style stout ; seeds linear-oblong. DifeTfiiB. Europe, temp. Asia. 



9. BRAS'SICA, L. CABBAGE, &c. 



Herbs of various habit. Leaves entire or pinnatifid, often large. Floiuers 

 in corymbs or racemes, white or yellow, rather large. Sepals erect or 

 spreading, equal or the lateral saccate at the base. Pods elongate, nearly 

 terete, with sometimes an indehiscent 1 -seeded beak ; valves convex, often 

 3-nerved, the lateral nerves flexuous ; septum membranous or spongy ; 

 stigma truncate or 2-lobed. Seeds 1-seriate, oblong orsubglobose ; radicle 

 incumbent, cotyledons concave or conduplicate. DISTBIB. Temp. Europe, 

 Asia, and N. Africa ; species 100. ETYAT. The Latin name. 



SECTION 1. Bras sica proper. Sepals erect. 



1. B. olera'cee, L. ; rootstock stout branched leafy at the top, leaves 

 obovate lobed or sinuate below glaucous glabrous, upper sessile oblong 

 dilated at the base, flowering racemes elongate, beak of pod seedless, valves 

 keeled and nerved. Wild Cabbage. 



Sea-cliffs, S.\V. of England and Wales; Channel Islds. ; (a denizen? 

 Wats.} ; fl. May-Aug. Stem 1-2 ft., biennial or perennial, very stout, tortu- 

 ous, usually decumbent, scarred. Lower leaves often 1-1| ft. Flowers 1 in. 



