POIATODIACE.E. 283 



miter recurvis "I -2 mm. lougis linearibus conspersa; frons meclio sursurn sorifera. 

 Sori seciis costam pinnularum 1 -seriatim siti, a costa l^mm. a margine 5mm. 

 distantes. Indusium rotundato-corclatum fulvum 2imn. in diametro. 



HAB. Arisan : Mingetsu, leg. B. HAYATA et TAKEO ITO, Mart. 1914. 



Very closely resembles Dryopteris Sabcei C. CH. in its habit, frond-texture 

 and colour, in the position of sori and in many other points ; but distingui- 

 shable from it by the structure of the scales and venation of the pinnules. 



This is one of the ferns which are represented in Japan by closely allied 



species. Among them, I may mention Dryopteris pseudo-Sieboldii HAY. for 



D. Sieboldii 0. KTZE., D. quadripinnata HAY. for D. Miqueliana C. CH., D. 



fluvialis HAY. for D. serndato-dentata Mk. and the present fern for D. Sabcei 



C. CH. 



Dryopteris reflexipinna HAYATA Ic. PI. Formos. IV. p. 174, (Fig. 113). 



Very distinct species for its zizag flexuose rhachis and reflexed pinna?. 

 Somewhat resembles Lastrea undulata THWAITES, (BEDD. Fern. South Incl. t. 

 271), but greatly differs from it by the herbaceous membra naceous fronds 

 and obtusely lobcd pinnules. D. reflexipinna HAYATA resembles D. Maximo- 

 luiczii in its texture and habit, while it comes near D. undulata in its reflexed 

 pinnas. 



Dryopteris sacholepis HAYATA sp. nov. (Fig. 111). Ehizoma ascendeiito- 

 crectum apice dense frondigerum, frondibus caespitosis. Stipes circ. 10cm. longus 

 dimidimn frond is requans basi dilatatus, partibus dilatatis lanceolatis l)asi plus 

 minus contractis supra basin latissimis 6 mm. latis apice gradatim atteunatis 

 fusco-purpureis complanatis sqtiamatis, partibus supra partem basilarem gracili- 

 bus subteretibus fusco-purpureis 1 mm. latis vel latioribus supra sulcatis minute 

 squarnatis sub lento plus minus mnricatis sursum strarnineis. Frons pinnata vel 

 bipinnatifida lanceolata vel triangulari- vel ovato-lanceolata 21 cm. longa llcm. 

 lata apice acuminata longe caudato-acuminata basi latissima sursum angustior, 

 pinnis approxirnatis margine contactis utroque latere 20-25, a mediis deorsum 

 inferioribus a3quilongis vel mediis- longissimis inferioribus panllo brevioribiis, 

 superioribus gradatim brevioribiis versus apicem ad dentem acuminis reductis, 

 pinnis mediis longissimis linearibus sessilibus 5cm. longis 12mm. latis a medio 

 deorsum tequilatis a medio sursum gradatim angustioribus apice acuminatis 



