Plate L 



Aldfla ßdidosa r()«T. et JiUPR. 



Fitf. 1. ]3;isal parts of two luatnrod })l;uits to sliow tlio spore )pli y 11-1 x^^aiing 



stipe and tlie iK^klfasts. x ^. 

 Fijj;. 2. A matured sptjroplnll in natural size. 



Fi^. 8. A part of the blade of a comparatively yonni^ })lant. x |. 

 Fi}^. 4. Cross section of tlie midiil). x 3. 



(Figs. 1-3 after Miyabe with a little modification). 



