334 



POLYPODIACE/K. 



Although I reduced this fern as a synonym of P. stenopliyUum in my 

 former paper, I think now it better to retain P. niitaliayamense for the 

 present, until I shall examine a specimen of the former. As the ferns of 

 this group are very like one another, one can not determine if they are the 

 same or not, unless one study their characters very carefully. 



Polystichum pseudo-Maximowiczii HAYATA (Fig. 137-f, g, h et 139) 

 sp. nov. Bhizoma ascendeus reliquis 

 stipitum frondum dense oLtectum 

 apice frondes casspitosum emittens. 

 )Stipes 13 cm. longus basi squamatus 

 sursum glabratus basi 2 mm. latus 

 in scctione O-formis supra (dorso) 

 complanatus subtus convexus, supra 

 medio tenuissime sulcatus utroque 

 latere sulcorum angustissime costatus 

 latere costa? late canaliculatus. Fron- 

 dis rliachis per totam longitudineni 

 dorso complanata in sectione lenti- 

 formis straminea nitida subtus sparse 

 supra plus squamata inferiorc 2 mm. 

 lata supra per totam longitudineni 

 costata, costa 1 mm. lata medio tenu- 

 issime sulcata castaneo-colorata per 

 costam hirsuto-squamata. Frons li- 

 ncaris 40 cm. longa 2^-3 cm. lata 

 apice acuminatissima basi sensim an- 

 gustata simpliciter pinnata, pinnis li- 

 neari-quadrangularibus, mediis l^cm. 

 longis :3 mm. latis suboppositis vel 

 alternis utroque latere 7 mm. dis- 

 tantibus, superioribus inferioribusque 

 ajquiformibus requilongis, sed pinnis 

 versus apicem et versus basin gradatim 



