WESTER: POLLINATION EXPERIMENTS WITH: ANONAS 535 
terogyny, produced another crop of fruits that year and the 
flowers responded likewise to pollination in the spring of I9gIo. 
Dr. A. Robertson Proschowsky, Nice, France, writes me that the 
results obtained by him in pollination experiments conducted on 
the cherimoya are analogous to those obtained by the author. 
The plants of the sugar apple and the custard apple available 
for experimentation bore a larger number of flowers than the one 
cherimoya plant, and 143 flowers on one sugar apple tree were, in 
FIGURE 5. Pond apple flowers; a type indigenous to South Florida. (One 
third natural size.) 
April and May, 1908, pollinated with their own pollen or that of 
eT 
flowers other plants of the same species, 41 with pollen 
) 
of the cherimoya, 41 with pollen of the pond apple, and 51 
flowers with pollen from the custard apple. In no instance did 
fruit set where the pollen was applied to the stigma simulta- 
neously with the discharge of its pollen; practically all dig ar 
ded where it was applied fifteen to forty-eight hours previous 
