VITACEAE. 117 



Bark sln-cddy : pith interrupted by diaphragms at the 



nodes: tendrils foikinj,'. 1. ViTiS. 



Barlv ni)t slireddv : pith continuous through the nodes : 



tendrils simple. 2. Muscadinia. 



Petals distinct, spreading. 



Floral envelopes mostly in 4's : disk 4-lobed : plant- 

 tissues fleshy. 3. Cissus. 

 Floral envelopes mostly in 5's : disk entire or nearly 



so : tissues not fleshy. 4. Ampelopsis. 



Hypogvnous disk wanting or obsolete : leaf-blades digitately 



5-7-foliolate. 5. 1'arthenocissus. 



1. VITIS [Tourn.] L. Leaf-blades palmately lobed, angled or coarsely 

 toothed. Flowers in elongate racemes or panicles. Calyx minute. Petals 

 cohering. Berries juicy, mostly edible. Seeds pyriform. — Grape.. 



Leaf-blades floecose beneath, brown or rusty, acuminate, with fine teeth. 



1. V. tiliifoHa. 

 Leaf-blades fclty beneath, white, acute, with coarse teeth. 2. V. coriacea. 



1. V. tiliifolia II. i: B. Leaf-blades ovate to ovate-orbicular, 5-14 cm. long, 

 acuminate, sinuate, with mucronate teeth, dull green above, finely and closely 

 reddish-fioccose beneath, especially rusty on and about the veins, cordate: 

 panicles 1-2 dm. long: berries globose, 10-12 mm. in diameter, purple. [F. 

 baribaea DC] — Hammocks. (Cuba, Ant.) 



2. V. coriacea Shuttlw. Leaf-blades reniform to suborbicular in outline, 3-10 

 cm. broad, shallowly toothed, angularly lobed (those of shoots often deeply 

 lobed), becoming glabrate above, felty beneath, cordate or truncate and sub- 

 cordate: panicles 5-12 em. long: berries subglobose, less than 10 mm. in diam- 

 eter, pleasantly acid. — Hammocks. 



2. MUSCADINIA Small. Vines. Leaf-blades angled or coarsely toothed. 

 Flowers in racemes or panicles. Calyx minute. Petals cohering. Berries 

 rather juicy, ultimately edible. 



1. M. Mvmsoniana (Simpson) Small. Leaf-blades thinuish, but rather firm, 

 suborbicular or reniform, 4-8 cm. broad, coarsely toothed, glabrous, except the 

 axils of the vein beneath, persistent, cordate at the base : berries globose, 1-1.5 

 cm. in diameter, nearly black under a slight bloom or shining, the skin and 

 pulp tender, acid: seeds 3-5 mm. long. — Hammocks. — F. K. (Bah.) — Bul- 



LACE-GRAPE. 



3. CISSUS L. Fleshy vines. Leaf-blades simple or 3-foliolate. Flowers 

 in small cymes. Petals spreading. Berries inedible. 



Leaf-blades simple, distantly serrate. 1. G. sicyoides. 



Leaf-blades 3-foliolate, the leaflets coarsely toothed. 2. 0. trifoliata. 



1. C. sicyoides L. Plants pubescent: leaf -blades ovate or oblong-ovate, 2-8 

 cm. long, acute or often acuminate: berries subglobose, about 1 em. in diam- 

 eter, black. — Hammocks. — F. K. {Ber., Bah., Cuba, Ant.) 



2. C. trifoliata L. Plants glabrous: leaf -blades 3-foliolate; leaflets 1-3 cm. 

 long, suborbicular varying to ovate or obovate, often flabellate: berries globose- 

 ovoid or ovoid, abruptly pointed, 5-7 mm. in diameter, dark-purple [C. acida 

 L.] — Coastal hammocks. — F. K. {Bah., Cuba, Ant.) 



4. AMPELOPSIS Michx. Woody vines. Leaf-blades simple or bipinnate. 

 Flowers in flat cymes. Petals sjireading. Berries inedible. 



1. A. arborea (L.) Eusby. Leaf -blades bipinnate, 1-2 dm. long; leaflets 

 several or many, the blades ovate, often broadly so or cuneate-obovate, 1-3 cm. 

 long, coarsely toothed, incised, or lobed: berries 10-13 mm. in diameter, dark- 

 purple. — Hammocks. — (Cuba.) — Pepper-vixe. 



