112 THE EVOLUTION OF OUR NATIVE FRUITS 



slightly glaucous, the skin thin but tough, pulp finally be- 

 coming sweet; seeds medium in size, pyriform. S. Cali- 

 fornia, south of the 36th parallel. Differs from V. Calif or - 

 nica in the more pubescent shoots and foliage, smaller and 

 sharp teeth, decompound clusters, smaller less glaucous 

 berries, and smaller seeds. Shoots of V. California often 

 bear leaves with small and muticous teeth, and such speci- 

 mens without the flower-clusters are difficult to distinguish 

 from this species. Some of the forms which have been 

 referred to V. Girdiana are evidently hybrids with the wine- 

 grape, V. vinifera; and at best the plant is imperfectly 

 understood and its merits as a species are yet to be deter- 

 mined. 



fit is Doaniana, Munson. Plant vigorous, climbing high or re- 

 maining bushy if failing to find support, with short inter- 

 nodes and rather thin diaphragms : leaves bluish green in 

 cast, mostly large, thick and firm, cordate-ovate or round- 

 ovate in outline, bearing a prominent triangular apex, the 

 sinus either deep or shallow, the margins with very large 

 angular notch-like teeth and more or less prominent lobes, 

 the under surface usually remaining densely pubescent and 

 the upper surface more or less floccose: cluster medium to 

 small, bearing large (%-inch and less in diameter), black, 

 glaucous berries of excellent quality ; seeds large (%- to 

 %-inch long), distinctly pyriform. Chiefly in N. W. Texas, 

 but ranging from Greer county, Oklahoma, to beyond the 

 Pecos River in New Mexico. The species varies greatly in 

 pubescence, some specimens being very nearly glabrous at 

 maturity and others densely white -tomentose. The plant 

 would pass at once as a hybrid of V. vulpina and V. candi- 

 cans, except that the former does not often occur in its 

 range. It is very likely a hybrid, however, and V. candicans 

 seems to be one of the parents. Promising as a parent of 

 varieties for the dry regions. 



cc. Rusty-tipped grapes, comprising the sestivalian group, the 

 unfolding leaves and (except in V. bicolor} the young shoots 

 distinctly ferrugineous, and the mature leaves either rusty 

 or bluish below, or sometimes becoming green in V. bicolor. 



Vitis (esttvalis, Michx. (Summer, Bunch, or Pigeon Grape.) 



