AMPELOPSIS 14'^ 



AMPELOPSIS Michx. (Vitaceae) 



Soft-wooded or somewhat succulent deciduous climbers, bear- 

 ing tendrils on the upper branches, opposite the leaf-scars. Stems 

 somewhat angled; pith moderate, soon dividing into thin plates. 

 Buds subglobose, solitary, sessile. Leaf-scars alternate, rounded; 

 bundle-traces about a dozen, indistinct, in an ellipse; stipule-scars 

 long and narrow. 



1. A. arborea (L. ) Koehne. Pepper- Vine. High-climbing 



or bushy nearly glabrous snruD;stems nearly terete; tendrils rather 

 few. Swan^ipy woods, Florida to Texas, north to Maryland, Mis- 

 souri, and Oklahoma (Fig. 209). 



PARTHENOCISSUS Planch. (Vitaceae) 



Deciduous woody climbers, bearing tendrils opposite the leaf- 

 scars, absent from every third node. Stems terete, moderate or 

 slender; nodes swollen; pith relatively large, continuous. Buds 

 moderate, frequently collaterally branched, sessile, round -conical; 

 terminal bud absent. Leaf-scars indistinct, in an ellipse; stipule- 

 scars long and narrow. Psedera Neck. 



a. Branchlets usually pubescent, 



nearly terete 1. P. quinquefolia 

 a. Branchlets essentially glabrous, 



channeled 2. P. tricuspid ata 



1. P. quinquefolia (L. ) Planch. Virginia Creeper . High- 

 climbing or trailing woody plant; twigs usually pubescent; tendrils 

 with 5-12 rather long branches ending in adhesive disks. Woods, 

 Florida to Texas and Mexico, north to Maine and Minnesota (Fig. 

 210). 



2. P. tricuspidata (Sieb. and Zucc. ) Planch. Boston Ivy. 

 High climbing; twigs glabrous; tendrils short, much-branched. In- 

 troduced from Asia, locally escaped from cultivation (Fig. 211). 



VITIS L. (Vitaceae) 



Hard-wooded deciduous climbers (or trailers), with usually 

 very flaking bark. Stems striate, rounded or somewhat angled; 

 tendrils opposite most of the leaf- scars. Buds subglobose, with 

 2 scales; terminal bud lacking. Leaf-scars alternate, half-round 

 or ores cent- shaped; bundle-traces several in a curved series, in- 

 distinct; stipule- scars long and narrow. Panicle-vestiges present 

 in winter, and often the withered fruits also. 



