IX FILICINE^ LEPTOSPORANGIATM 345 



throws the spores violently away and returns to nearly its 

 normal position.'' 



Paraphyses, in the form of pointed hairs, often with a 

 glandular terminal cell, sometimes occur with the sporangia. 

 These in some Ferns, c. g., Aspidiinu fiUx-mas, are direct 

 outgrowths of the sporangium itself. 



