382 O rig 171 of Each Species Considered Separately. 



From these general considerations I pass on to the 

 special treatment of our first example O. scintillans. 

 Fig. 47 and Plate V show the flowering spike of annual 

 examples of the species ; the long, tapering budbearing 

 internodes above the open flowers cannot fail to attract 

 attention. This feature stamps the habit of the plant 

 from July to late in the autumn : in most of the other 

 species the buds do not rise much above the crown of 

 flowers. Moreover the bracts in this region are pretty 



Fig. 8i. Oenothera scintillans. A, young plant with 6 

 leaves above the cotyledon. Bj young rosette at the age 

 of two months. 



large so that the youngest part of the stem is fairly 

 thickly clothed with leaves. 



The flowers are considerably smaller than in 0. La- 

 mar ckiana, a circumstance almost certainly due to the 

 general delicacy of the species. Otherwise, the struc- 

 ture of the flowers resembles that of the parent species; 

 for example the stigmas extend well beyond the anthers 

 so that the flowers are generally cross-fertilized. 



