﻿BOTANICAL GAZETTE 



Fig. 15— Fragments in center due to disintegration of walls still attached 

 to column in figs. 13, 14. 



Fig. 16— Young hairs developed from meristematic basal portions of 

 original segments. 



Fig. 17. — Older stage of same. 



Fig. 18. — Mature hairpit; meristematic portions of segments seen on 

 side with papillae. 



Fig. 19— Older pit; long hairs falling off; meristematic portions of seg- 

 ments putting forth papillae and delicate hairs. 



Fig. 20. — Mature conceptacle; delicate hairs being shed; oogonia in all 

 stages from one-celled to complete blocking off of 8 eggs, developed by papu- 

 lation and subsequent segmentation from meristematic portions of original 

 segments; old hairs still seen about the ostiole, as well as fragments scattered 

 through the cavity. 



