24 



VI. CRUCiFER^ : ARABiDE-^. [ Cheirdnthus. 



a horn at the base. Cal erect, 2 opposite sej)als saccate at the 

 base. Longer Jilaments dilated. — ]!^amed in honour of an 

 Italian physician, P. A. Matthiolus. 



1. M. incdna Br. (hoary shrubby S.) ; stem shrubby uprio-Iit 

 branched, leaves lanceolate entire hoary, pods cylindrical without 

 glands. Cheiranthus L. ; E. B. t. 1935. 



Cliffs to the eastward of Hastings; but not wild. Ventnor, Isle of 

 Wight. Pj. 4— 6. —The origin of the Stock Gllly-flower of our 

 gardens, where it is generally treated as an annual or biennial. 



2. M. sinudta Br. (great-sea S.) ; stem herbaceous spreading 

 leaves downy lower ones sinuated, pods compressed muricated! 

 Cheiranthus Z. ; E. B. t. 462. 



Sandy shores of Wales, Cornwall, Jersey, and Guernsey, g, 5-^^. 

 Flowers purple, large, fragrant at night. Our two British species 



have no point or horn at the base of the stigma. 



■T w 



F 



2. Cheiranthus Linn. Wall-flower. 



% 



Pod compressed or 2- edged. 

 saccate at the base. 



patent or capitate. Hypogy 



Cal. erect, 2 opposite sepals 

 Stigma placed on a style, 2-lobed, the lobes 



longer stamens. — Named perhaps from the Arabic Kheyry^ 

 not however originally applied to this genus; or rather from 

 X^tjo, the handy and arf^oc, a flower^ 1 

 one delights to carry it in the hand. 



w ' 



1. C. Cheiri L. (common W.) ; leaves lanceolate acute entire 

 with bipartite appressed hairs, pods linear, lobes of the stigma 

 patent, stem shrubby at the base. C. fruticulosus L. : JE. B. 

 t. 1934. 



Old walls. T^ • ^9 ^' — A variety, with larger, more highly coloured 

 and more Aaccld petals , is commonly cultivated in gardens. 



3. Barbarea Br. Winter-cress. 



r 



P(?c? 4-angled and somewhat 2-edged; m??;e5 with a middle 

 nerve. Seeds in a single row. Calyx erect, equal at the base. 

 Glands between the shorter filaments and the germen, and a 

 subulate one between each pair of the longer ones. — Name: 

 this plant was formerly dedicated to St. Barbara. 



1. B- vulgaris Br. (bitter TF*., yellow Pocket); lower leaves 

 lyrate the superior ones obovate toothed or pinnatifid at the 

 base, pods linear bluntly 4-angled acuminate much thicker than 

 the pedicel. — a. uppermost side lobes of the radical leaves as 

 long as the transverse diameter of the terminal roundish or 

 somewhat cordate terminal lobe. Erysimum Barbarea L. : E. B- 

 t. 443. — (3. side lobes of the radical leaves all small and much 



