VITACEAE 755 



berries globose, 8-10 rum. in diameter, very dark Avith a copious bloom, tbe pulp sour : 



seeds pear-shaped, 6 mm. long, each with a conspicuous raphe. 



Mostly on banks, New Brunswick and Ontario to Montana, Florida, Texas and Colorado. Spring ; 

 fruit ripening in September, mostly after frost. Riverside Gr.\pe. 



9. Vitis Ldngii Prince. A vigorous vine, the foliage woolly pubescent when young. 

 Leaf-blades firm, longer than broad, or about as long as broad, 5-15 cm. broad, 3-lobed 

 and coarsely toothed with angular apiculate teeth, cordate at the base ; petioles about ^ as 

 long as the blades : panicles 3-10 cm. long, pubescent : berries globose, 10 mm. in diam- 

 etei-, nearly black, with a pale bloom : seeds pear-shaped, 6 mm. long, each with a conspic- 

 uous raphe. 



In thickets or river valleys, the Indian Territory to Texas and New Mexico. Spring ; fruit ripening 

 in September.— A variety, V. Longii microsperma (Munson) Bailey, represented by very vigorous plants 

 which produce smaller seeds and which seem especially adapted to resisting drought! grows along the 

 Red River in northern Texas. 



10. Vitis palmata Vahl. A slender trailing but strong and handsome vine, several 



meters long. Leaf-blades thin, deeply 3-5-lobed and very coarsely toothed, green and 



glabrous on both sides or glaucescent beneath and sparingh' pubescent on the nerves, 



cordate at the base, on long slender red petioles : panicles 5-12 cm. long, slender : berries 



spbglobose, 7-10 mm. in diameter, black, destitute of any bloom : seeds subglobose, a 



little flattened, often solitary, 5-6 mm. in diameter, each with a conspicuous raphe. 



In sandy or rocky places, Illinois to Missouri, Louisiana and Texas. Late spring and summer ; 

 maturing its fruit in September and October. 



11. Vitis bicolor LeConte. A vigorous high-climbing vine. Leaf-blades thinnish, 



mostly longer than broad, 1-3 dm. in diameter, 3-5-lobed, shallowly toothed, glabrous 



above, glaucous and glabrous beneath or the nerves sparingly pubescent, or dull green at 



maturity ; petioles elongated : panicles 5-10 cm. long, commonly long-peduncled : berries 



globose, 10-14 mm. in diameter, black beneath the bloom, rather sour but pleasant-tasted : 



seeds nearly as broad as long, abruptly constricted near the base, each with a conspicuous 



raphe. 



In rocky woods and on river banks, New York to Illinois, North Carolina and Tennessee. Spring ; 

 matures its fruit in September, chiefly before frost. Blue Grape. Winter Grape. 



12. Vitis Doaniana Munson. A vigorous bushy or high-climbing vine, with short 

 internodes. Leaf-blades of a bluish green hue, about as broad as long, 8-14 cm. in diameter, 

 3-lobed and coarsely toothed, firm-leathery, permanently densely pubescent beneath and 

 more or less floccose above, cordate at the base, the lobes acuminate or sometimes only 

 acute ; petioles somewhat more than J as long as the blades : panicles rather small : 

 berries subglobose, 12-16 mm. in diameter, black beneath the bloom, with much sweet 

 pulp : seeds pear-shaped, 6-10 mm. long, each with a conspicuous raphe, often solitary. 



In valleys, Oklahoma to Texas and New Mexico. Spring ; fruit ripening in September. 



13. Vitis cin^rea Engelm. A high-climbing vine. Leaf-blades thinnish, mostly 



longer than broad, 8-20 cm. in diameter, shallowly toothed, otherwise entire, or distinctly 



angularly 3-lobed near the apex, cobwebby above or glabrous and rugo.se in age, more or 



less softly pubescent beneath, with ashy or dark brown webby hairs, cordate at the base ; 



petioles i as long as the blades or longer : panicles 1.5-3 dm. long, irregular drooping : 



berries subglobose, 10-14 mm. in diameter, black, barely glaucous, rather numerous : seeds 



broadly pear-shaped, 4.5-5 mm. long, each with a conspicuous raphe. 



In lime soil and along streams, Illinois to Kansas, Florida, Texas and Mexico. Spring ; maturing 

 its fruit in the fall, especially after frost.— A variety, V. cinerea canescens (Engelm.) Bailey, with leaf- 

 blades more nearly as broad as long, rather rounded and destitute of the triangular outline and the 

 3-lobed upper portion, occurs from Illinois to Missouri and Texas. Downy Gr.\pe. 



14. Vitis austrina Small. A vigorous vine, with rusty felt-covered twigs. Leaf- 

 blades thinnish, orbicular or ovate-orbicular, 10-15 cm. in diameter, more or less distinctly 

 3-lobed, triangular at the apex, finely pubescent beneath and often rusty on the nerves, dull 

 green above, cordate, the teeth very low, remote ; petioles rather short : panicles relatively 

 small : peduncles often about as long as the panicles : berries mostly 6-9 mm. in diameter, 

 black, without a bloom : seeds obovoid, 4-5 mm. long. [ V. cinerea var. Floridana Munson, 

 not V. Floridana Raf.] 



In woods and thickets, Florida. Spring. 



15. Vitis Linsecomii Buckl. A bushy or high-climbing but stocky vine. Leaf-blades 

 firm, as long as broad or a little longer than broad, 3-lobed and toothed, cordate, glabrate 

 above, densely cottony or velvety beneath ; petioles more than h as long as the blades : 

 panicles 5-10 cm. long : berries subglobose, mostly 12-20 mm. in diameter, black beneath 

 the bloom, pleasantly tasted : seeds pear-shaped, 6-10 mm. long, each with a conspicuous 

 raphe. 



In dry oak lands, Missouri to Tennessee, Louisiana and Texas. Spring ; fruit ripening in Septem- 

 ber.— A variety with glaucous-blue lower leaf-surfaces, except the rusty nerves, is V. Linsecomii Idclea 

 Small [ V. Linsecomii var. glauca Munson] it occurs from Missouri to Texas, and may be a distinct species. 



