256 JUKATTIACE.E. HYJIEXOrm-I.IACE.i:. 



Marattiaeese. 

 Archaiiffiopteris Cheist ct Giesexhagex. 



Flora (1899) pp. 72-77 ; ExGLEn u. Pka^-tl Xatur. Pfl.-f\im. 1-4, p. 439. 



Archangiopteris Somai HLwata sp. nov. Piliizoma Stipes circ. 50 cm. 



longiis plus miaus squamatus, squamis lanceolatis membranaceis 2-3 mm. longis. 

 Frons in circumscriptioue ovata 40 cm. louga 25 cm. lata i)innata, pinnis in 

 specimine uostro 4, pinna terminali lanccolata 30 cm. louga 6 cm. lata apice 

 subito aciuminatissima, acumine lineari basi 3^mm. lato, basi obtusa, i)etiolulo 

 1 cm. longo, margine a basi usque ad proj)e acumen regulariter ci^enulata, 

 crenulis ^ nim. longis 1 mm. latis, ad basin acuminis dentata, dentibus ascen- 

 dentibus aiiice obtusis l^ mm. lougis, utraque pagiue glabra supra viridissima 

 subtas pallidissima, venis lateralibas simplicibiLs vcl a basi furcatis, venulis 

 parallelis a costa circ. angulo 90' divaricatis plus miuus supcriore recmTis a se 

 2-3 mm. remotis simplicibus distiuctis haud elevatis liaud impressis ad marginem 

 fere attiugentibus vel prope marginem evanescentibus ajiice haud clavatis ; 

 textura crassiuscule herbacea vel crassiuscule membrauacea ; iiinnis lateralibus 

 cum terminali conformibus sed paullo minoribus ; paginc suli soro plus minus 

 pilosa ; costa pinuie supra plana subtus plus minus elevata. 



Hab. Pialiao, Dec. 1910, leg. T. Som.v. 



Kesembles Arcliangioptcris Henryi Christ et Giesexhagex in liaving 

 simply piunatc fronds with liuear sori ; but differs from it br the veiT shortly 

 stipitate iiinna^ with very much longer tails at the apex, aud in the sori which 

 in om- species are located much nearer to the costa than to the margin. Stipules 

 on the stipes or those on the pinna-petioles are not yet seen in om- si^ecimen. 

 A full description and ilhistration -n-ill l)e given in the uext volume. 



Hymenophyllacese. 



HumcnophijUiim Lixx. 



Hymenophyllum crispato-alatum Hayata sp. nov. Ehizoma repens. 



Stipes 6-10 cm. longus a basi usque ad medium teres a medio sm-sum alatus 



cum alis 2mm. latus, alis §mm. latis, glaber. Frons ovato-lanceolata vel lau- 



ceolata 14-22 cm. longa 31-6 cm. lata apice acuminata basi in ambitu truncata 



