CRUCIFEILE 



157 



right angles to the rachis or slightly decurved, frequently tipped 

 with a bristle when young ; terminal lobe much the largest, tri- 

 angular, obtuse. 



Sisymbrium Sophia, L. (fig. 165). 



Hoot and hypocotyl as in preceding species. 



Cotyledons oblong, obtuse ; petiole flattened above, and more or 

 less covered with stellate, stalked hairs, convex beneath. 



Leaves more or less lobed or pinnatisect, covered on all parts 

 with stalked and stellately branching hairs ; petiole flattened above, 

 convex beneath. 



FIG. 164. Sisymbrium runcinatum. 

 Nat. size. 



FIG. 165. Sisymbrium 

 Nat. size. 



No. 1. Lamina ovate, obtuse, trilobed,cuneate at the base; middle 

 lobe longest. 



No. 2. Similar ; middle lobe of the lamina a little longer. 



No. 3. Lamina oblong, pinnatipartite ; lobes slightly toothed, 

 alternate. 



No. 4. Lamina oblong, pinnatisect ; lobes toothed. 



Nos. 5 and 6. Lamina oblong, pinnatisect ; lobes pinnatifid, 

 alternate. 



Conringia perfoliata, Link. 



Hypocotyl tapering downwards, glabrous, green or colourless, 

 3-4 mm. long. 



Cotyledons rotund-ovate, obtuse, entire, rather fleshy, petiolate, 



