144 ELEMENTS OF BOTANY. 



leaves, panicles long and slender; fruit dark blue, small, very acid. 

 April-May. In rich woods. 



3. V. ROTUNDiFOLiA Michx. MuscADiNE Grape. Stem climb- 

 ing high; joints short; bark not shreddy; wood very hard, often 

 producing long, aerial roots ; leaves orbicular, cordate at the base, 

 coarsely dentate, nearly or quite smooth ; panicle small ; fruit few 

 in a cluster, large. May-June. The original form of the Scupper- 

 noiig grape. 



II. AMPELOPSIS. 



Climbing or diffuse woody plants ; leaves simple or pin- 

 nately compound ; flowers in long-peduncled cymes, polyg- 

 amous or dioecious ; petals 5, distinct, deciduous ; stamens 

 as many as the petals and opposite them, inserted on the 

 5-lobed disk ; ovary 2-celled, 2 ovules in each cell ; fruit a 

 berry, not edible. 



A. ARBOREA (L.) Rusby. Pepper-vixe. Stem diffuse, tendrils 

 often none ; leaves bi-pijmate ; leaflets small, ovate, irregularly lobed 

 or toothed, nearly or quite smooth ; cymes opposite the leaves, fork- 

 ing; berry small, black. May-July. Common on margins of 

 streams. 



III. PARTHENOCISSUS. 



Woody vines, climbing by tendrils and rootlets ; leaves 

 palmately compound ; flowers in compound cymes, perfect or 

 polygamous ; petals 5, distinct, spreading, disk none ; stamens 

 5; ovary 2-celled, 4-ovuled; fruit a 1-4-seeded berry, not 

 edible. 



P. QUiNQUEFOLiA (L.) Plauch. VIRGINIA Creeper. Stem 

 usually climbing high, but sometimes short and prostrate, often 

 producing many adventitious aerial roots which assist the Adne in 

 holding to a support ; tendrils usually terminating in flat, adhesive 

 disks ; leaves palmately 5-f oliate ; leaflets oval, coarsely and unevenly 

 toothed above, usually entire below, smooth or slightly i)ubescent; 

 cymes large and spreading when mature ; pedicels red ; berries 

 smaU, dark blue. May-June. Common in rich woods. 



