ONAGRAKIE^E 



559 



tooth in the notch, auricled or cordate at the base, plano-convex, 

 and conforming to the interior of the seed, lying in the broader way 

 of the slightly compressed seed, with their backs to the raphe ; 

 radicle much shorter than the cotyledons, turbinate, obtuse, lying 

 in the basal and pointed end of the seed, much longer than the 

 auricles of the cotyledons. 



Seedling (figs. 357, 358). 



Primary root long, tapering downwards, and giving off short 

 lateral rootlets, colourless, annual. 



FIG. 357. Clarkia sp., x 2. 



Hypocotyl erect, terete, densely and minutely pubescent, deep 

 red, 2-5-3-5 cm. long. 



Cotyledons rhomboid-ovate, emarginate, with a tooth in the 

 notch, distantly toothed at the sides, and constricted some distance 

 below the apex, with narrow rounded notches, and a distinct midrib 

 but no other discernible venation in the fresh state, petiolate, 

 glabrous excepting the petiole, deep green above, glaucous beneath ; 

 lamina 8-14 mm. long, 6-5-10 mm. wide ; petiole subterete, 



