8 
The Bulletin 
the two succeeding years set fruit, neither did the flower clusters that 
grew out in the open produce any berries, although exposed to all 
chances for cross-pollination. Branches were also bagged and cross- 
pollinated with pollen from a light-colored staminate vine in order to 
test out the assumption that with this vine cross-pollination is absolutely 
necessary, but no fruit developed in any of these hags. 
Fig. 2.—Lower section of a flowering branch of Hope. The two lower clusters have shed 
their stamens recently while the upper cluster is in full bloom. Reduced. 
