FIG. 108. Longitudinal section of moss capsule 

 (Funaria), showing its complex character: 

 d, operculum; p, peristome: c, c', columel- 

 la; #, sporogenous tissue; outside of s the 

 complex wall consisting of layers of cells 

 and large open spaces (A) traversed by 

 strands of tissue. After GOEBEL. 



FIG. 110. Sporogonia of Grimmia, from all of 

 which the operculum has fallen, displaying 

 the peristome teeth : A, position of the teeth 

 when dry ; J5, position when moist. After 

 KEENER. 



sin 



FIG. 109. Partial longitudinal 

 section through a moss cap- 

 sule : A, younger capsule, 

 showing wall cells (a), cells 

 of columella (i), and sporog- 

 enous cells (su) ; B, some- 

 what older capsule, a and i 

 same as before, and sm the 

 spore mother cells. After 

 GOEBEL. 



