FIG. 109. Funaria hygrometrica. A, Longitudinal section of a sporogonium showing 

 the first differentiation of its parts, X about 96; B, the upper part of the same, 

 X6oo; r marks the limits of the theca and operculum; C, basal part of the cap- 

 sule of the same, X6oo. The intercellular spaces are beginning to form; ar, 

 archesporium ; col, columella. 



