' 



PLATE VIII. 



Oenothera xi/locarpa Coville. 



Figs, a and h, seed, viewed from either face, enlarged 5 diameters. The seed is 

 attached to the placenta by its narrow end, the broader end pointing toward 

 the apex of the capsule. In fig. a the raphe and the point of insertion are 

 shown. The nodding of the bud in the main figure is probably an individ- 

 ual peculiarity of this specimen. Description on page 105. 



33i 





