﻿Manchester Memoirs, Vol. xlix. (1905), No. 12. 7 



They have been met with in great abundance in the 

 pollen-chambers of two other species of Lagenostoma y 



Text-Fig. i. Cycas ovule, in longitudinal section, showing 

 the outer and inner layers of the thick integument, the prominent 

 micropyle, the nucellus, with a deep tubular cavity, the pollen- 

 chamber, and below this the embryo-sac. Magnified. 



Text-Fig. 2. Cycas ovule. Apex of nucellus, more highly 

 magnified, showing the deep pollen-chamber full of pollen-grains 

 in its upper part. To the left are two pollen-grains, more enlarged. 

 Figs, i and 2 are from Griffith ('52). 



