562 



ON SEEDLINGS 



pale pink or purplish midrib ending in a broader purple blotch on 

 the base of the true cotyledon. Hypocotyl densely pubescent. 



The lower foliar portion soon becomes 

 broader and longer than the upper coty- 

 ledonary part which is also only very slightly 

 pubescent. 



Thirty-five days after germination (fig. 

 360) the cotyledons are oblong, distinctly 

 petiolate, constricted near the apex at the 

 union of the foliaceous and cotyledonary 

 part, emarginate with a minute tooth in the 

 notch, cuneate at the base, with a distinct 

 midrib throughout, and a few rather in- 

 distinct alternate nerves on each side, minutely pubescent all over 

 the upper surface but more sparingly on the under surface, which 



FIG. 359. 

 Clarkia rhomboidea, x 3. 



FIG. 360. Clarkia rhomboidea, x 2. 



is reddish-purple ; petiole semiterete, channelled above, densely 

 pubescent. 



First pair of leaves opposite, ovate, obtuse, cuneate at the base, 

 alternately incurvinerved, entire, shortly petiolate, densely pubes- 

 cent all over ; petiole convex on the back or semiterete, channelled 

 above, densely pubescent. 



Second pair similar. 



