78 



REVUE BRYOLOGTQIE 



/ 



t 



B 



C 



D 



\. 



Fig. 4 



A 



E. 



F. 



G 



Loagttudinal section through a receptacle containing a half-ripe sporo- 

 gonium, covered by the calyptia, on the skies of which, towards the 

 base , are borne the unfertiUsed archegonia and some of the 



X35. 



mucilage-hairs 



I 



B , C , D. — Young sporogonia in longitudinal section. X *J^* 



Part of the capsule-wall in surface view (outer surface), showing the 

 ends of the (ihrous thickenings on the vertical walls of the cells. X 200. 



Part of tlic capsule-wall in transverse section X 2G0. 



A cell of the capsule-wall, from a longitudinal section of the capsule, 

 showing the two sets of fibres crossing each other on the cell- 

 wall X 200. - 



H 



Spore in section and part of an elater in surface view 



