Some Y 1 Hybrids 
17 
in Winchell; blades thin, silky, hairy above and cobwebby below*; 
petioles and young canes also cobwebby, glossy dark green above, paler 
beneath; texture and surfaces of leaves are more like Winchell than 
Hotundifolia; stipules larger than in Rotundifolia. Leaves are com¬ 
paratively free from insects and fungi. The peculiar yellowing of the 
leaves in late summer and fall on Hotundifolia vines is also charac¬ 
teristic of this hybrid. The blackened areas on the leaves due to Guig- 
nardia Bidwellii (V. & R.), are small and typical of those commonly 
seen on leaves of Hotundifolia. The leaves drop from the vine late in 
the fall with those of Hotundifolia. 
Tendrils: Small and weak, growing stronger where a support has 
been gained, mostly bifid, sometimes simple, silky pubescent when 
young, usually green but occasionally very light brown in color. 
Flower-clusters: Yery small and often smaller than on Scupper- 
nong; racliis soft and buds crowded as on Winchell; buds larger than 
on Hotundifolia. 
Flowers: Imperfect hermaphroditic; large pistils and reflexed 
stamens. 
Blooming period of vine: Just after Winchell and practically simul¬ 
taneous with Hotundifolia. A second crop of flowers may be forced out 
by summer pruning. 
Fertility of flowers: Pollen shriveled and impotent; ovules mostly 
sterile, occasionally fertile. This vine is sterile because of the double 
phenomenon of intersexualism with attendant impotence and hybridiza¬ 
tion. 
Fruit-clusters: Yery small. Thus far no clusters have been pro¬ 
duced that consisted of more than two berries; peduncle very short. 
Berries: Medium in size, 16 mm. long and 14 mm. wide, do not 
Fig. 8. Seeds from parental and hybrid vines; on the left are seeds from 
Winchell (female parent), on the right are typical Rotundifolia seeds (repre¬ 
senting the male parent), below are seeds from the hybrid vine. The general 
outline and type of the seeds from the hybrid vine evidently are determined 
by the Rotundifolia parent. Natural size. 
