FOLYPODIACE.E. 



261 



a 



Polypodiaeeae.* 

 Adianthum LINN. 



Adianthum hispidulum Sw ? (Fig. 94). Rhizoma repens densissime 

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

 pureus subteres ascendens 14-20 cm. longus medio ^ mm. in diametro primum 

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

 usque lata pedato-5-ramosa, ramo terminal! 10cm. longo 1cm. lato linear! 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 pinnarmn 

 1 mm. longis ; rarnis frondis lateralibus alternis a se 1 cm. 

 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 distinct! approxi- 

 mati. Indusia (vel partes pinnarum renexae soriferre) rotun- 

 data in exsiccato rubro-purpurea extus strigoso-liispida intus 

 dense sporangiifera rotundata basi valcle 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. 



Antrophyum KAULF. 



Antrophyum sp. (Fig. 95). Rhizoma? dense squaniatum. Squamae 



rhizomatis fusco-castanea3 lineares 3-8 mm. louga? basi latissimse ^- mm. 

 latre margine remotissime miiiuteque setuloste vel subintegrre. Frons caespitosa 

 subsessilis oblanceolata cum sti])ite subnullo 28-35 cm. longa 2^-3 cm. lata apice 



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



Fig. 94, Adi- 

 anthum hispidulum 

 S\v?; a, a pinna; 

 b, a sorus, indusium 

 turned up ; c, sori, 

 seen from above. 



