PLATE i« 
A. —Red raspberry buds and flowers. Pollen counts were made, for the most part, 
from anthers taken from buds at approximately the stage of development shown 
in the youngest bud. 
B. —Photomicrograph of an anther from a La France XRanere hybrid that was used 
for the study of the chromosome behavior in this triploid individual. 
C. —Photomicrograph of anther from a sterile La Franc XRanere hybrid. 
°The drawings of Plates 2 and 3 were made with a 2mm. Zeiss apochromatic lens, a No. 18 compensation 
ocular and a camera lucida. One exception, Plate 3, G, was made with a 1.7 lens and a No. 12 ociilar. All 
drawings were made with the paper on the table level with the base of the microscope. 
