Hybridization of Vitis Rotundifolia 
19 
Fig. 4. Vitis Rotundifolia, Transverse Section of Bundle, ( p ) Phellogen, (/) 
SCLERENCHYMA FIBERS, (7l) HARD BAST, (S) SOFT BAST, (C) CAMBIUM, (r) RAY, ( V ) 
VESSELI-. 
