504 Reporr oF tHE HorTICULTURAL DEPARTMENT OF THE | 
found in the Ohio River basin. The vines are moderately vig- 
orous in growth, shoots climbing, densely pubescent, with 
thick diaphragms and continuous tendrils; leaves large, thick, 
entire or three-lobed, very woolly on under side; clusters small, 
compact; berries medium to large, blue, red or white in color, 
Shatter badly, with a very foxy odor. From this species came 
most of our cultivated varieties—156 out of 161 varieties men- 
tioned in this bulletin have Labrusca blood in them. Labrusca 
is adaptable to a wide range of conditions under cultivation, is 
hardy, productive, and resistant to diseases; it is of first im- 
portance horticulturally in America east of the Rocky Moun- 
tains. The grape breeder has used it, with promising results, 
in crosses with other species. ‘“ Kar marks ” of this species are 
continuous tendril, thick diaphragm, heavy pubescence, thick 
leathery leaves, foxy odor of fruit, shattering of the berries and 
large number of clusters per shoot. 
Vitis lincecumii.— The home of this species is eastern Texas, 
western Louisiana, Oklahoma, Arkanas and southern Missouri. 
Growth vigorous, climbing or growing in clumps; shoots 
covered with rusty wool, tendrils intermittent; leaves very 
large, entire, three, five or rarely seven lobed, with rusty pubes- 

cence below; fruit ranges from small to large, typically black 
with heavy bloom. Being a southern species it requires a 
longer season to mature than that of New York, but its vine 
and fruit characters make it of interest to the southern breeder. 
Vitis riparia.— The natural range of Riparia far exceeds 
that of any other of our native species; it is found from New 
Brunswick and Quebec southward to the Gulf of Mexico and 
west to the Great Salt Lake in Utah. Over this wide area it 
is found mostly in the river valleys and upland ravines. Vine 
vigorous to very vigorous, climbing; shoots smooth, slender ; 
tendrils intermittent, diaphragm thin; leaves medium to large, 
thin, entire, shallowly three to five lobed, usually glabrous 
above, hairy or lightly pubescent below; cluster medium to 
small, compact; berries small to medium, black, with blue 
