rOLTPODIACE.E. 



297 



subrectis superioribiis pliis minus sursum recm'vis, pimiulis inferioribiLS a 

 rhcichibas i^innarum angulo 80°-90° egressis rectis superioribus angulo 50'-60' 

 egressis subrectis ; segmentis pinnularum a rhacliide iiinnularum inferioi-ibus 

 angulo recto egressis superioribus iilus minus asccndentibiis. Sori ad marginem 

 basis lateris sui^erioris lobulorum pinnukrum ordinis secundarii singulariter 

 dispositi partibiis recurvis mai-ginis lobulorum frondis subobtecti. 



Hab. Nimandaira, leg. Taiveo Ito ct B. Hayata, Aprili. 1914. 



Near Hijpolepls tenuifolia Beenh.; but differs from it by tlie much thinner 

 fronds with quite obtusely lobed terminal segments. Also near Hypolepis 

 punctata Mett. {=Dryopteris imnctata C. Ch.), but easily distinguishable from 

 it by the chestnut colom^ed stipes and rhachis, and by the dark colourcd fronds 

 in dried specimens. 



Lieptochiltis Kaul. 



Leptocliilus angustipinnus Hatata sp. nov. (Fig. 119). Rhizoma ? Frons 

 sterilis : Stipes 30 cm. longus medio 2J-3 mm. latus 

 basi minute densiuscule squamatus, squamis polygo- 

 no-oblongis subamceboideis 1 mm. longis J mm. latis, 

 stramineiLs plano-convexus in sectione supra planus 

 subtiis couvexus supra 4-5 s>;Icatus ; frons ovato- 

 tiiangularis 45 cm. longa 30 cm. lata medio latissima 

 basi minirs lata vel asquilata vel latior aiiice caudato- 

 acuminata basi in ambitu truncata jiinnata, pinnis 

 linearibus infimis 16cm. longis, piunis mcdiis sub- 

 asquilongis superioribus gradatim brevioribus minori- 

 bus, versiLS apicem frondis ad pinnas laterales super- 

 rimas minimas 4-5 cm. longas abeuntibus ; pinna 

 terminali subito longior jiinnas suj^errimas laterales 

 in longitudine 3-4-plo superauti vel interdum per- 

 fecte obsoleta et ad prolem reducta; pinna infima line- 

 ari 15-1 6 cra. longa 2 cm. lata apice gi-adatim acumi- 

 natissima, acuminibus minus quam 3 mm. latis 2 cm. 

 longis, medio deorsum ffiquilata basi late triangulari- 

 acuta margine rcisandula, repandiilis mediis 4mm. 



Fig. 119, Leptochilus 

 wigustijnnmisHAtAiA; a, 

 a portion of a pinna of a 

 sterile froiid ; b, a portion 

 of a iiuina of ihe fertile 

 frond; c, uross section of 

 tlie sauie ; d, a scale on 

 the stipe. 



