KEVL'E BKYOLOGIQUE 



75 



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Fig. 3 



A 



B 



C 



D. 



-I 



Part of a vertical longitudinal section of a male plant, traversing a 

 receptacle. The walls of the anlheridial cavities bear numerous 

 club-shaped mucilage-hairs, and much larger hairs are borne at the 

 anterior end of the receptacle, on the light. On the left are shown 

 five of the wide rhizoids which grow downwards; on the right, six 

 of the narrow rhizoids which grow back parallel with the lower 

 surface of the thallus. X 20. 



Part of a similar section, showing the growing-point of the receptacle, 

 witli 



the 



hirge 



mucilage-hairs 



and several developing anlhe- 



ridia. X DO. 



Part of a vertical longitudinal section of a female plant, traversing a 

 receptacle. JJelween the archegonia arise numerous long mucilage- 

 hairs; rhizoids as in A. X 35. 



\ 



Part of a similar section, showing a fertilised archegonium containing 

 an embryo, and on the left ofthis an unfertilised archegonium. X^^O. 



