150 



AMERICAN VINES. 



Fig. 77. Leaf of Riparia X Candicans. 



Solonis, and others differ only by the less dense tomentum 

 or by the complete absence of hair; the general shape of 

 the leaves, the acuteness and direction of the teeth are always 

 those of the Solonis type. Certain forms of Novo-Mexicana 

 only differ insignificantly from Riparia X Candicans ; they 

 always have thinner leaves. 



These hybrids remain fairly constant in their characters in 

 the wild state over a fairly large zone. Their seedlings pre- 

 serve the general characters rather well, which induced T. V. 

 Munson to consider them as a species. They are obviously 

 hybrids, in which the characters of V. Riparia and V. 

 Candicans are easy to detect. Millardet considers, perhaps 



