POLYPODIACE.E. 



261 



Polypodiaeeae.* 

 Adianthum LINN. 



Adianthum hispidulum Sw ? (Fig. 94). Khizoma repens densissirne squa- 

 mis nigris nitidis obtectum apice coespitosum frondigerum. Stipes fusco-pur- 

 pitreus subteres ascendens 14-20 cm. longus medio f mm. in diametro primum 

 hispidulus demum glaber nitidus. Frons in ambitu ovata 12 cm. longa toti- 

 usque lata pedato-5-ramosa ; ramo terminali 10cm. lougo 1cm. lato lineari apice 

 acuminatissimo, pinnis alternis brevissime petiolulatis flabelliformibus 5 mm. 

 longis 4 mm. latis apice rotundatis basi oblique cuneatis margine denticulatis, 

 partibus cuneatis basalibus integris ; petiolulis pinnarum 

 1 mm. longis; ramis frondis lateralibus alternis a se Icm. 

 longis, ramis ad partem ab axillis 5 mm. remotam 1-plo 

 furcatim ramosis, ramulis superioribus 8 cm. longis, ramu- 

 lis inferioribus 2| cm. longis ; ramulis linearibus pinnatis, 

 pinnis mediis majoribus inferioribus superioribus gradatim 

 minoribus versus apicem ad nullum reductis ; rhachis frondis 

 et ramorum tota hispida fusco-purpurea gracillima ; pagina 

 membranacea supra glabra subtus sparse hispida. Sori ad 

 marginem lateris superioris pinnarum siti distincti approxi- 

 mati. Indusia (vel partes pinnarum reflexee soriferas) ro tun- 

 data in exsiccato rubro-purpurea extus strigoso-hispida intus 

 dense sporangiifera rotundata basi valde constricta. 



HAB. Shinsuiye, leg. U. MORI, Dec. 1912. 



Near A. flabellatus L., but distinguishable from it in having much smaller 

 obliquely cuneate pinnules and by the long creeping rhizomes densely clothed 

 with adpressed black scales. 



Antropliyuvn, KAULF. 



Antrophyum sp. (Fig. 95). Khizoma? dense squamatum. Squamas 



rhizornatis fusco-castaneoa lineares 3-8 mm. longae basi latissimas ^- mm. 



lafae margine remotissime minuteque setulosse vel subintegrge. Frons casspitosa 



subsessilis oblanceolata cum stipite subnullo 28-35 cm. longa 2J-3cm. lata apice 



* For convenience sake, the genera under this family are arranged in the alphabetical order. 



Fig. 94, Adi- 

 anthum hispidulum 

 Sw ? ; a, a pinna ; 

 b, a sorus, indusium 

 turned, up ; c, sori, 

 seen from above. 



