3US 



rOLYPODIACE.i:. 



f<ii'm8 wliicli iiiay be casilj' regarded as distinct .sjiecies. 

 Altliougli I have not yet scen tlie specimens of the 

 named specics, I siispect if P. appendk-ulata may uot be 

 a collective name for at least two difFei'ent valid species. 

 Our ferns, whicli miglit be regarded as forms of the 

 same species. are xqyx constant and are never variable. 

 Polijpodium Lixx. 

 Polypodium aspidistiifrons H.wata sp. uov. 



Fig. 123-A ; Polypodimn aspidi^tri/roim IIayata x {. 



Fig. 123-B, Polypo- 

 dirim afpidistiifrons Ha- 

 Y.vta; a, a iiortion of a 

 f ronrl, natural size ; b, a 

 scale on the rhizomc ; c, 

 a scale on the siirface of 

 the frond, greatly niag- 

 nified. 



I 



