Genus i. 



GRAPE FAMILY 



3. Vitis cinerea Engelm. Fig. 2832. 



Vitis aestivalis var. canescens Engelm. Am. 



Nat. 2: 321, name only. 1868. 

 Vitis aestivalis var. cinerea Engelm. ; A. 



Gray, Man. Ed. 5, 679. 1867. 

 V. cinerea Engelm. Bushb. Cat. Ed. 3, 17. 



1883. 



Climbing, branches angled, young shoots 

 and petioles mostly tloccose-pubescent ; 

 bark loose; pith interrupted; tendrils 

 intermittent. Leaves dentate, or some- 

 what 3-lobed, often longer than wide, 

 rather densely floccose-pubescent with 

 whitish, persistent hairs on the lower 

 surface, especially along the veins, spar- 

 ingly so on the upper ; inflorescence 

 loose; berries black, without bloom, 

 3"-4" in diameter, pleasantly acid, 1-2- 

 seeded; seeds about 2" long, the raphe 

 narrow. 



Illinois to Nebraska, Kansas, Louisiana 

 and Texas. May-June. Downy or ashy 

 grape. 



4. Vitis bicolor LeConte. Blue or Winter 

 Grape. Fig. 2833. 



Vitis bicolor LeConte, Proc. Phil. Acad. 6 : 272. 1852. 

 Vitis aestivalis var. bicolor LeConte ; Wats. & Coult. 

 in A. Gray, Man. Ed. 6, 113. 1890. 



High-climbing or long-trailing, the tendrils in- 

 termittent, the branches terete. Twigs and leaves 

 glabrous, or somewhat pubescent, bluish-glau- 

 cous, especially the lower surfaces of the leaves, 

 the bloom sometimes disappearing by the time 

 the fruit ripens ; internodes long, the pith inter- 

 rupted at the nodes ; leaves usually 3-lobed, cor- 

 date at the base, sometimes 12' long, the sinuses 

 rounded, the lobes acute or acuminate; inflores- 

 cence compact; berries bluish-black with a bloom, 

 sour, about 4" in diameter; seeds about 2" long, 

 raphe narrow. 



New Hampshire to Michigan, North Carolina, 

 Tennessee and Missouri. May-June. 



5. Vitis vulpina L. Riverside or Sweet 

 Scented Grape. Fig. 2834. 



Vitis vulpina L. Sp. PI. 203. 1753. 

 Vitis riparia Michx. FI. Bor. Am. 2 : 231. 1803. 

 Vitis cordifolia var. riparia A. Gray, Man. Ed. 5, 

 113. 1867. 



Climbing or trailing, glabrous^ throughout, or 

 more or less pubescent on the veins of the lower 

 surfaces of the leaves ; branches rounded or 

 slightly angled, greenish ; pith interrupted, the 

 diaphragm thin ; tendrils intermittent. Leaves 

 thin, shining, almost all sharply 3-7-lobed, the 

 sinuses angular, the lobes acute or acuminate, 

 the terminal one commonly long ; stipules 2"-3" 

 long, often persistent until the fruit is formed ; 

 inflorescence compact or becoming loose ; ber- 

 ries bluish-black, with a bloom, 4"-s" in diam- 

 eter, rather sweet; seeds 2-4, 2" long, the raphe 

 narrow and inconspicuous. 



Along rocky river-banks, New Brunswick to Mani- 

 toba, south to Maryland, West Virginia, Arkansas 

 and Colorado. May-June. Fruit beginning to ripen 

 in July or earlier, sometimes continuing until Octo- 

 ber. Winter-, frost-, bull- or Aroyo-grape. 



