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



Plate VI. 



Leaves of Four Native American Species of Grapes Used as Stocks on Which 

 to Graft Vinifera Varieties. 



Fig. l.—Vitis champini, upper and lower side of leaf, one-fourth natural size. Fig. 2.—VUis 

 doaniania, upper and lower side of leaf, one-sixth natural size. Fig. 3.— Vitis candicans, upper 

 and lower side of leaf, one-fourth natural size. Fig. 4.— Vitis herlandieri, upper and lower side 

 of leaf, one-sixth natural size. 



