Bui. 209, U. S. Dept. of Agriculture. 



Plate VII 



Leaves of Four Grape Hybrids Used as Stocks on Which to Graft Vinifera 



Varieties. 



Tig. 1.— Monticola X Riparia No. 1SS0S, upper and lower side of leaf, one-sixth natural size. Fig. 2.— 

 Cordifolia X Riparia No. 125-1, upper and lower sideof leaf, one-eighth natural size. Fig. 3.— Ber- 

 landieri X Riparia No. 420A, upper and lower side of leaf, one-sixth natural size. Fig. 4.— Linse- 

 comii X (Labrusca X Vinifera), upper and lower side of leaf, one-eleventh natural size. 



