5'o 



VITACEAE. 



Vol. II. 



2. Ampelopsis arborea (L.) Rusby. Pepper-vine. 



Fig. 2840. 



Pinnate-leaved Ampelopsis. 



Vitis arborea L. Sp. PI. 203. 1753. 



Cissus stans Pers. Syn. i : 143, 1805. 



Vitis bipinnata T. & G. Fl. N. A. i : 243. 1838. 



Ampelopsis arborea Rusby, Mem. Torr. Club 

 5 : 221. 1894. 



Glabrous or nearly so, erect or ascend- 

 ing, bushy, sometimes climbing; tendrils 

 often wanting. Leaves bipinnate, or the 

 lowest tripinnate and sometimes 8' in 

 length or more ; leaflets ovate or rhombic- 

 ovate, ¥-i¥ long, sharply serrate, acute or 

 acuminate at the apex, obtuse or slightly 

 cordate or the terminal one cuneate at . 

 the base, glabrous, or somewhat pubescent 

 on the veins beneath ; panicles short-cymose ; 

 corolla expanding; berries black, depressed- 

 globose, about 3" in diameter, sometimes 

 pubescent, the flesh thin, inedible ; seeds 1-3. 



In rich moist soil, Virginia to Missouri, 

 Florida and Mexico. Cuba. June-July. 



Ampelopsis heterophylla (Thunb.) 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 culti- 

 vation at Lancaster, Pa., in 1890. 



3. cissus L. Sp. PI. 117. 1753. 



Mostly climbing vines, sometimes prostrate, the foliage usually succulent. Leaves simple 

 or compound, often trifoliolate, the leaflets readily separating in drying. Flowers mostly 

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

 Berries small, inedible; 1-2-seeded. [Greek, ivy.] 



Over 225 species, most abundant in tropical regions. Type species : Cissus vitaginea L. 



I. Cissus incisa (Nutt.) Des Moulins. 

 Cut-leaved Cissus. Fig. 2841. 



Vitis incisa Nutt. T. & G. N. A. i : 243. 1838. 



Cissus incisa Des Moulins ; Durand, Actes Soc. Linn. 

 Bordeaux 24: [reprint 59]. 1862. 



A long vine, the stem and leaves succulent. Leaves 

 3-foliolate or 3-parted; leaflets or leaf-segments 

 ovate or obovate, cuneate at the base, toothed, or 

 the middle one lobed, 2' long or less ; inflorescence 

 umbel-like ; berries obovoid, 4" long, nearly black, 

 i-2-seeded, borne on recurved pedicels. 



Sandy and rocky soil, Missouri and Kansas to Texas, 

 Florida and Arizona. June-Aug. 



1887. 



4. PARTHENOCISSUS Planch, in DC. Mon. Phan. 5: Part 2, 447. 

 [PsEDERA Neck. Elem. 1 : 158. Hyponym. 1790.] 

 [QuiNARiA Raf. Am. Man. Grape-vines, 6. 1830. Not Lour. 1790.] 

 Climbing or trailing woody vines, the tendrils often tipped with adhering expansions 

 (disks), or sometimes merely coiling, our species with digitately compound leaves, the leaflets 



