114 VITACE.E. (VINE FAMILY.) 



coarsely and sharply toothed; stipules small; inflorescence ample, loose; 

 berries small, black and shining, very acerb, ripening after frosts ; seeds I or 

 2, rather large, with a prominent rhaphe. Thickets and stream-banks, New 

 Eng. to central 111., Mo., Neb., and southward. May, June. 



5. V. riparia, Michx. Differing from the last in the larger and more per- 

 sistent stipules (2-3" long), more shining and more usually 3-lobed leaves with 

 a broad rounded or truncate sinus and large acute or acuminate teeth, smaller 

 compact inflorescence, and berries (4 - 5" broad) with a bloom, sweet and very 

 juicy, ripening from July to Sept. ; seeds very small ; rhaphe indistinct. (V. 

 cordifolia, var. riparia, Gray.) Stream-banks or near water, W. New Eng. to 

 Penn., west to Minn, and Kan. Eastward the berries are sour and ripen late. 



6. V. palmata, Vahl. Branches bright red ; leaves dark green and dull, 

 3 - 5-lobed, with a broad sinus, the lobes usually long-acuminate ; inflorescence 

 large and loose ; berries black, without bloom, ripening late ; seeds very large 

 and rounded; otherwise like n. 5. (V. rubra, Michx.) 111. and Mo. 



7. V. rupestris, Scheele. (SAND or SUGAR GRAPE.) Usually low and 

 bushy, often without tendrils ; leaves rather small, shining, broadly cordate, 

 abruptly pointed, with broad coarse teeth, rarely slightly lobed ; berries rather 

 small, sweet, in very small close bunches, ripe in Aug. Mo. to Tx. ; also 

 found in Tenn., and reported from banks of the Potomac, near Washington. 



2. MUSCADfNIA. Bark closely adherent on the branches; pith continuous 

 through the nodes ; tendrils simple, intermittent ; seeds with transverse wrinkles 

 on both sides. 



8. V. rotundifdlia, Michx. (MUSCADINE, BULLACE, or SOUTHERN 

 FOX-GRAPE.) Leaves shining both sides, small, rounded with a heart-shaped 

 base, very coarsely toothed with broad and bluntish teeth, seldom lobed ; 

 panicles small, densely flowered ; berries large (j ' in diameter), musky, 

 purplish without a bloom, with a thick and tough skin, ripe early in autumn. 

 (V. vulpina, ^fan., not L. ?) River-banks, Md. to Ky., Mo., Kan., and 

 southward. May Branchlets minutely warty. This is the original of the 

 Scupperuong Grape, etc. 



2. CISSUS, L. 



Flowers perfect or sometimes polygamous, 4-merous or (in ours) 5-merous. 

 Petals expanding. Disk cup-shaped, surrounding the base of the ovary. 

 Berry inedible, with scanty pulp. Seeds usually triangular-obovate. Ten- 

 drils in our species few and mostly in the inflorescence. A vast genus, mainly 

 tropical. (Greek name of the Ivy.) 



1- C. Ampelopsis, Pers. Nearly glabrous; leaves heart-shaped or trun- 

 cate at the base, coarsely and sharply toothed, acuminate, not lobed ; panicle 

 small and loose; style slender; berries of the size of a pea, 1 -3-seeded, bluish 

 or greenish. (Vitis indivisa, Wittd.) River-banks, Va. to 111., and southward. 

 June. 



2. C. Stans, Pers. Nearly glabrous, bushy and rather upright; leaves 

 twice pinnate or ternate, the leaflets cut-toothed ; flowers cymose ; calyx 5- 

 toothed ; disk very thick, adherent to the ovary ; berries black, obovate. 

 (Vitis bipinnata, Torr. $ Gray.) Rich soils, Va. to Mo., and southward. 



