8 



UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



habitat we may see that it will be well adapted to light gravelly soil?, 

 hillsides, and sandy soils. It is very resistant to phylloxera (16-18). 

 The Rupestris vines have a larger trunk than the Riparias and show, 

 after grafting, less difference between the scion and stock. The cuttings 

 root easily, but not quite as well as those of Riparias; the rooting can 

 be aided by scratching the bark of the lower part of the cutting on a 

 short-tooth iron comb. The returns in bench-grafting are about the 

 same as those obtained with Riparia. As the Rupestris cuttings sucker 

 very much, it is of great importance to suppress carefully the eyes on 



PLATE 2. VITIS CANDICANS. MUSTANG GRAPE. 



Showing the entire or lobed leaves with the limb convex on the upper face. 

 Three of the leaves are turned over, showing the very thick, white felt 

 on the under face of the leaves. 



the stock when bench-grafting. Of the two varieties that are mostly 

 used, the Rupestris Martin is possibly a little better adapted to dry 

 locations. The Rupestris St. George, though well adapted to gravelly 

 hillsides and light soils, has proved also, in the last few years, to be a 

 vigorous grower, even in lands where the water-table is close to the 

 surface several months in the year. (Letter from Prof. L. Ravaz.) 



Vitis candicans. The V. candicans, or Mustang grape (Plate 2), found 

 in its wild state in Texas and Arkansas, grows generally on bottom 



