CRUCIFEILE 



169 



Nos. 1 and 2. Elliptic or oval, obtuse, somewhat tapered towards 

 the base, obtusely and distantly serrate-crenate. 



Nos. 3 and 4. Elliptic, obtuse, tapered to the base, more deeply 

 serrate-crenate. 



Lepidium spinosum, L. 



Hypocotyl erect, terete, glabrous, 1-2 cm. long, light green or 

 colourless. 



Cotyledons oval-ob- 

 long, fleshy, entire, 

 petiolate, glabrous, dull 

 green, indistinctly one- 

 veined. 



Stem short ; primary 

 internodes undeveloped. 



First leaves simple, 

 cauline, obovate or ob- 

 long, subacute, coarsely 

 serrate or even crenate, 

 petiolate, glabrous, light 

 green, indistinctly pin- 

 natinerved. 



Senebiera didyma, P. 



Primary root long, 

 tapering and normal, 

 annual. 



Hypocotyl subter- 

 ranean, tapering down- 

 wards into the root. 



Cotyledons opposite, 

 linear - spathulate, ob- 

 tuse, tapering to the 

 petiole, 6-8 mm. long 

 including the petiole, 

 glabrous. 



Stem developing later, decumbent, leafy. 



Leaves simple, radical and cauline, alternate, exstipulate, petio- 

 late, glabrous, glandular ; glands sessile, with a disagreeable smell. 



No. 1, and frequently Nos. 2 and 3. Entire with an oblong- 

 obtuse or spathulate lamina. Further stages of leaves are oblong, 

 pinnatifid, with elliptic, bristle-tipped segments ; terminal lobe 

 largest, entire or trifid. 



FIG. 173. ILepidium graminifolium, 



