86 SYSTEMATIC POMOLOGY 



disk, which rises into 5 thick lobes or glands between the 

 stamens; leaves simple, rounded, and heart-shaped, usually 3-5 

 lobed. Fruit a pulpy berry. ISTorth America is very rich in 

 number of species,, in widespread, distribiition and in abund- 

 ance of plants. From our native species come all the cultivated 

 grapes of America except those of California. 



§ 1. Bark loose, shreddy; tendrils forked; nodes solid. 



* A tendril (or infloresence ) opposite every leaf. 



v. Labrusca, Linn. — ISToethbrit Fox Gkapb^ furnishing 

 most of the American table and wine grapes ; leaves and young 

 shoots very cottony, even the adult leaves retaining the cottony 

 wool underneath, the lobes separated by roundish sinuses ; fruit 

 large, with a tough musky pulp when wild, dark purple or 

 amber-color in compact clusters. The original of the Concord, 

 Hartford, and many others. 



* * .Tendrils intermittent (none opposite each third leaf). 

 ■i—Leaves pubescent and floccose, especially beneath when 



young. 



V. aestivalis, Michx. Summer Grape. — ^Branches terete; 

 leaves green above, and with loose, cobwebby, rusty down 

 underneath, the lobes with roundish open sinuses; clusters 

 slender; fruit smaller and earlier than in the foregoing, black 

 with a bloom, pleasant. Common from Va., S. Original of 

 the Herbemont, .Norton's Virginia and others. 



-i — }— Leaves glabrous and mostly shining, or short-hairy 

 beneath, cut-lobed or undivided. 



■'r^Flowers more or less polygamous (some plants inclined 

 to produce only staminate flowers), exhaling a fragrance like 

 that of Mignonette ; native species. 



V. ripdria, Michx. (or V. culpina ) . River Grape. — Leaves 

 Usually 3-lobed, sinus broad, rounded or truncate ; stipules large 



