VITACEAE. 615 



7. Vitis cordifolia Michx. FROST GRAPE. CHICKEN GRAPE. (I. F. f. 

 2404.) Twigs glabrous or slightly pubescent, terete or indistinctly angled; inter- 

 nodes long; tendrils intermittent; stem sometimes 3 dm. in diameter or more. 

 Leaves7.5-iocm. wide, thin, sometimes slightly 3-lobed; tendrils forked, intermittent; 

 stipules about 4 mm. long; berries black, shining, about 6 mm. in diameter, ripen- 

 ing after frost; seeds I or 2, about 4 mm. long; raphe narrow. Moist thickets and 

 along streams, N. Eng. to Neb., Fla. and Tex. May-June. Fruit ripe Oct. -Nov. 



8. Vitis Baileyana Munson. BAILEY'S GRAPE. (I. F. f. 2405.) Branches 

 angled, the young twigs tomentose, the tendrils intermittent; internodes short. 

 Leaves crenate-dentate, sometimes slightly 3-lobed, as a rule smaller than those of 

 V. cordifolia, the teeth mucronate; berries black, 8-10 mm. in diameter; seeds 

 about 4 mm. long, the raphe broad. In valleys, Va., W. Va. and N. Car. 



9. Vitis rupestris -Scheele. SAND GRAPE. SUGAR GRAPE. (I. F. f. 2406.) 

 Bushy, sometimes climbing to a height of I or 2 metres, glabrous or somewhat floe- 

 cose -pubescent on the younger parts; tendrils forked, intermittent or often want- 

 ing. Leaves pale green, shining, abruptly pointed, rarely slightly 3-lobed, the 

 sides often folded together; stipules 4-6 mm. long; inflorescence compact; berries 

 black, with a bloom, 6-8 mm. in diameter, 2 4-seeded; seeds about 4 mm. long; 

 raphe very slender. Southern Penn. to Mo., D. C., Tenn. and Tex. April-June. 



10. Vitis rotundifolia Michx. SOUTHERN FOX-GRAPE. BULLACE GRAPE. 

 (I. F. f. 2407.) Glabrous or nearly so; tendrils simple, intermittent, sometimes 

 few. Leaves nearly orbicular, 5-7.5 cm. wide, dark green, shining; inflorescence 

 dense; berries few, purple, I-I.8 cm. in diameter, without bloom, tough, musky; 

 seeds several, flat, wrinkled, notched at the apex; raphe indistinct. In moist soil, 

 Md. to Kans., Fla., Tex. and Mex. May. Fruit ripe Aug. -Sept. 



2. AMPELOPSIS Michx. 



Climbing woody vines, or some species bushy, the coiling tendrils not tipped 

 by adhering expansions. Leaves simple, dentate or lobed, or pinnately or pal- 

 mately compound. Flowers polvgamo-dioecious or polygamo-moncecious. Disk 

 adriate to the base of the ovary; ovary 2-celled; ovules 2 in each cavity; style 

 subulate. Berry 2-4-seeded, the flesh usually thin and inedible. [Greek, Vine- 

 like.] About 15 species, of temperate and warm regions, the following in N. Am. 



Leaves coarsely serrate, or slightly 3-lobed. i. A, cordata. 



Leaves 2-3-pinnately compound. 2. A. arborea. 



1. Ampelopsis cordata Michx. SIMPLE-LEAVED AMPELOPSIS. (I. F. f. 2408. ) 

 Glabrous, or the young twigs sparingly pubescent, climbing, the branches 

 nearly terete ; tendrils few or none. Leaves broadly ovate, 5-10 cm. long, 

 glabrous or pubescent along the veins, acuminate; panicles small, loose; disk cup- 

 shaped; berries 4-6 mm. in diameter, bluish, i-2-seeded; seeds about 4 mm. long. 

 Swamps and river-banks, southern Va. to Fla., 111., Kans. and Tex. May-June. 



2. Ampelopsis arborea (L.) Rusby. PEPPER-VINE. (I. F. f. 2409.; Gla- 

 brous or nearly so, bushy; tendrils often wanting. Leaves sometimes 2 dm. in 

 length or more; leaflets ovate or rhombic-ovate, 1.25-4 cm. long, sharply serrate, 

 obtuse or slightly cordate, or the terminal one cuneate at the base, glabrous or 

 somewhat pubescent on the veins beneath; panicles short-cymose; berries black, 

 depressed -globose, about 6 mm. in diameter, sometimes pubescent; seeds 1-3. In 

 rich moist soil, Va. to Mo., Fla. and Mex. Also in Cuba. June-July. 



Ampelopsis heterophylla (Thumb.) Sieb. & Zucc., a climbing eastern Asiatic vine, 

 with deeply palmately 3~5-lobed leaves and short peduncled compound cymes, was found 

 as a waif from cultivation at Lancaster, Pa., in 1890. 



3. Cl'sSUS L. 



Mostly climbing vines with fleshy foliage. Leaves compound or simple, when 

 compound the leaflets commonly separating in drying. Flowers mostly perfect. 

 Petals usually 4, spreading. Disk cup-shaped, adnate to the base of the ovary, 

 mostly 4-lobed. [Greek, ivy.] A large genus, mostly tropical. 



I. Cissus incisa (Nutt.) Desmoul. Usually a large vine, fleshy throughout 

 Leaves 3-foliolate or 3-parted; leaflets or segments ovate, cuneate at base, toothed, 



