310 MANUAL OF AMERICAN GRAPE-GROWING 



CONSPECTUS OF CULTIVATED SPECIES OF VITIS 



A. Skin of mature berry separating freely from the pulp. 

 B. Nodes without diaphragms ; tendrils simple. 



1. V. roiundifolia. 



2. V. Munsoniana. 

 BB. Nodes with diaphragms ; tendrils forked. 



C. Leaves and shoots glabrous at maturity and without 

 bloom ; tendrils intermittent. 



D. Leaves thin, light, bright green, generally glabrous 

 below at maturity except perhaps in the axils 

 of the veins with a long or at least a prominent 

 point and usually long and sharp teeth or the 

 edge even- jagged. 



E. Leaves broader than long ; petiolar sinus 

 usually wide and shallow. 



3. V. rupestris. 

 EE. Leaves ovate in outline; petiolar sinus 



usually medium to narrow. 



4. V. vulpina. 

 DD. Leaves thick, dull colored or grayish-green, often 



holding some close, dull pubescence below at 

 maturity, shoots and leaves nearly always 

 more or less pubescent when young ; the 



teeth mostly short 5. V. cordifolia. 



6. V. Berlandieri. 

 CC. Leaves rusty or white tomentose or glaucous blue 



below, thick or at least firm. 

 D. Leaves flocculent or cobwebby or glaucous 



below when fully grown 7. V. cestivalis. 



8. V. bicolor. 



DD. Leaves densely tomentose or felt-like beneath 

 throughout the season ; covering white or 

 rusty white. 



E. Tendrils intermittent 9. V. candicans. 



EE. Tendrils mostly continuous. 



10. V. Labrusca. 

 A A. Skin and pulp of mature berry cohering. (Old World.) 



11. V. vinifera. 



1. Vitis rotundifolia, Michx. Muscadine Grape. Bull Grape. 

 Bullet Grape. Bushy Grape. Bullace Grape. Scuppernong. 

 Southern Fox Grape. 



Vine very vigorous, sometimes, when without support, shrubby 

 and only three or four feet high ; when growing in the shade often send- 



