74 VITACE.*:. (VIXK FAMILY.; 



paiiiik's long aii>l louse; berries small, i)lack, ripening late. — Hiver lianks 

 and low gronuil. May-Juue. — Stem climi)ing liigii. Berries 2" -.J" in 

 iliameter, sharply acid. 



6. V. riparia, .Miehx. Leaves orliicuhir-<-onlate, with a rounded siims, 

 3' -6' wide, strongly .'{ - Tj-Iohed, coarsely toothed; stipules 2"-. "J" long; 

 panicle small, the berries in compact clusters, 4" -5" in diameter, black with 

 a bloom, sweet and juicy, ripening early. — Kiver banks, 'I'ennessee. 



7. V. rupestris, Scheele. Stem low, erect, branching ; leaves 3' long, 

 glabrous, cordate or truucate at the ba.se, rarely lobed, coarsely toothed; 

 berries small, sweet and juicy. — Sandy banks, Teuuessee, and westward. 

 May. — Teudrils weak aud deciduous, or uoue. 



§2. MusCADiMA. Bark pale and smooth; tendrils siin/ile; jiith continuous 

 through the nodes ; seed transverseli/ wrinkled. 



8. V. rotundifolia, Michx. (Muscadixk, Bullace.) Leaves broadly 

 cordate, toutlied-serrate, mostly smooth aud glos.sy, the sinus broad and 

 rounded, or narrow and acute ; panicle small ; berry large. — Banks of rivers, 

 Florida to North C'aroliua, aud westward. Juue. — Stem climbing high. 

 Leaves 2' -3' wide. Berry i'-f in diameter, purple, pleasant flavored. — 

 A form with .smaller leaves and berries, the latter very austere, aud sometimes 

 called the Mustang Gkai'E, is common along the coast. 



2. CISSUS, L. 



Flowers mostly perfect. Petals 4, and spreading, rarely 5, and cohering 

 at the top. Stamens 4-5. Disk cup-shaped. Styles mostly slender. — 

 Leaves simple or c(jiiip(nuid. Inflorescence cymose. Berries small, inedible. 



1. C. bipinnata, Nutt. Leaves bijjinnate, smoothi.sli ; leaflets small, 

 ovate, sli;ir])ly toiillicd ; flowers somewhat cymose, on along forkiiig j)eduncle ; 

 petals 4 -.5, united at the ape.x, or spreading; style conical ; disk 4-.'J-lolied; 

 berry 2-4-seedi'd. — Margins of .swamps. June -July. — Stem climbing. 

 Leaflets Y -1' long. Berry small, black. 



2. C. acida, L. Branches geniculate ; leaves trifoliolate, thick and rigid ; 

 leaflets small, cuneate-obovate, sharply toothed at the apex ; flowers in com- 

 pound umbels; petals 4; berry black, 1-seedcd. — Key West. — Tendrils 

 stout and elongated. Leaflets ^' long. 



3. C. incisa, Desmoul. Smooth; stem climbing, warty ; leaves trifolio 

 late, very tliick and fleshy ; leaflets stalked, wedge-shaped and entire near tlie 

 ba.se, the lateral ones 2-lobed, the middle 3-lobed, alL mucronate-toothed or 

 serrate; cymes trichotomous ; petals 4 ; berry globose-ovate, nodding, pointed 

 with the conspicuous slender .style, 1-seeded. — Sandy shores, Florida, and 

 westward. — Stem 6° -12° long. Leaflets l'-3' long. Panicles cymose. 

 Berry 5" -6" long. 



4. C. Ampelopsis, Pers. Leaves simj)le, undivided, ovate, truncate, or 

 cordate at the base, acuminate, toothed-serrate, pubescent ; peduncles forking; 

 petals and stamens .") ; .style slender ; disk cup-shaped ; berry 1 -3-.seeded. — 

 Banks of rivers, P'lorida to South Carolina, and westward. June. — Stem 

 climbing high. Berry small, black. 



