40 
The Bulletin 
PLATE III 
Photomicrographs of pollen grains of Vitis 
rotundifolia 
Eig. 1 . Pollen from Hope 
Fig. 2. Pollen from Thomas 
Fig. 3. Pollen from hermaphrodite seedling with up¬ 
right stamens, F 1 generations of Thomas X 
Hope 
Fig. 4. Pollen from hermaphrodite seedlings with re- 
flexed stamens, F x generation of Thomas X 
Hope 
