288 



POLYPODIACEA'. 



supra minus elevata densissime hirsuta subtus plus elevata dorso complanata 

 sparse hirsuta pallido-straminea ; venis venulis apice elevatis ; pinna subopposita, 

 mediis a se 8 cm. remotis, inferioribus plus remotis, superioribus approximatis, 

 segmentis pinnarum approximatis margine se contactis; pinnis mediis superiori- 

 bus a rhachide angulo 60 egressis, infimis plus minus deorsum reflexis. Sori ad 

 medium inter costam et marginem siti rotundati pauce sporangiiferi, sporangiis 

 setosis. Indusium nullum. 



HAB. Mt. Arisan ; Niman- 

 daira, Jan. 1915. leg. T. SOMA. 



Kemarkable for the setulose 

 sporangia. 



Dryopteris subfluvialis 

 HAYATA sp. nov. (Fig. 113-A-B). 

 Khizoma crassum ascendens dense 

 squamatum apice frondem sub- 

 solitariter emittens. Squama* 

 rhizomatis fusco-castaneas lineari- 

 lanceolataa 1-2 cm. longee 1-2 

 mm. latse apice lineari-acumi- 

 natse basi truncates haud cordatae. 

 Stipes 21 cm. longus basi 6 mm. 

 crassus basi squamatus supra 

 basin sursum glaber in sectione 

 subtetragonus stramineus intus 



Fig. 113-A, Dryopteris subfluvialis 

 HAYATA ; a, a portion of a pinnule ; b, 

 an indusium. 



Fig. 113-B, Dryopteris subfluvialis HAYATA 



