426 AET. I. B. H AY AT A : 



conspicuo ovato-triangiilari 6 cm. longo 2 J cm. lato sm'sum 

 acnminato apice obtuso basi latissimo sursnm ascendento- 

 recm'vato a lobo terminal! angulo 90° divaricato margine integro ; 

 nervis ven'sque nt lobi terminalis ; rhaches frondiam tetragono-teretes, 

 supra snlcateo latere plana? subtus convexie parcissime pubescentes ; 

 costœ foliolorum supra planis dense brevissime hirsutas subtus 

 parcissime minute piloso-squamatae minute parce maculatse, venis 

 et venulis utraque plus minus elevatis distinctis, venulis inter 

 venas reticulatis areolis venulis liberis plus minus ramosis. Sori 

 marginales 1-2 -3 -seriatim dispositi, ad venulas liberarum dorsales, 

 globosi 1 mm. in diametro. Indusium profunde cordatum 1 mm. 

 in diametro, margine longe ciliolatum. 



Hab. Hokuto, leg. G. Nakahaea, Dec. 1906. 



Very near A. trifoUatum, but differs from it in the position of 

 sori which are nearly limited towards the margin. 



Aspidium melanocaulon Blume ; C. Chetstensen Ind. Fil. p. 82. 

 Neplirodium melanocaulon Bakee. 



Hab. Liukiu, Hanechiyama, leg. G. Nakahaea, Aprili. 

 DisTEiB. South China, Tonkin, Malesia, Philippines, N. Guinea. 



Aspidium subtriphyllum Hook. ; H ay at a in Tokyo Bot. Mag. 

 XXH. p. 25. 



Polystichit/ni Eoth. 



Polystichum falcatum Diels var. caryotldeum (Wall.) ; Hayata 

 in Tokyo Bot. Mag. XXHI. p. 25. 



Polystichum stenophyllum Cheist in Bull, Soc. Bot. France 

 LH. Mém. I. p. 27. 



