12 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



Mourvedre X Rupestris or Mataro X Rupestris is a very fine selection 

 of Vinifera X American; the 1202 grows well in all soils from a chalky 

 land to a deep alluvial one. It has been found quite resistant to 

 phylloxera, and particularly well adapted to heavy clay soils. 



Bourrisquou X Rupestris and Carignane X Rupestris have also a large 

 range of adaptation, but are specially adapted to dry locations. 



Aramon X Rupestris (1 and 2) are found to do splendidly in clay 

 soils of medium fertility and in soils underlaid with clay. We have a 

 great many of these soils in California, and this stock may prove to be 

 of great value. The roots are superficial, like those of the Riparias, 

 but they are large and fleshy. 



MUNSON HYBRIDS. 



Mr. Munson has created, in recent years, a great many hybrids of 

 Americo X Americans and of Vinifera X Americans; some of these are 

 quite promising, but the local results that have been published at 

 different times can not be taken as final proof of their value. We have 

 not yet sufficient data to give personal observations on these, but will 

 give the opinion of Professors Viala and Ravaz, the French viticultural 

 authorities, on some of the Munson resistant stocks. 



Vitis champini (Candicans X Rupestris). Can be divided in two 

 groups: the glabrous and the tomentose. The glabrous group has a 

 resistance of 14, the tomentose of 12. They are harder to grow from 

 cuttings than the Rupestris, but have the advantage of being good 

 growers in heavy clays and of having large wood. Their low resistance 

 is, however, a grave objection, especially when we have some varieties 

 that do just as well in the same locations and which are much more 

 resistant. 



Candicans X Monticola (Gwyn, Sanford, Belton). The latter is prob- 

 ably the best; it has a resistance of 16, is very vigorous, has a large 

 trunk, does well in compact soils, and has large wood, but does not 

 grow well from cuttings. 



Novo-Mexicana. This is probably a Candicans X Riparia X Rupes- 

 tris. The Solonis, Moobetie, Hutchison, and Doaniana are some of the 

 varieties of this group. They are adapted to Solonis soils; that is, rich, 

 with plenty of moisture. They do well in lands that are rather wet 

 and salty (alkali). They grow well from cuttings and have good-sized 

 wood. The resistance to phylloxera is not first class, but is sufficient 

 in soils well adapted to them. In lands not well adapted, they suc- 

 cumb rapidly to the attacks of the insect. The Hutchison is more 

 vigorous and resistant; the Solonis and Doaniana less so. 



