158 



POLYPODIACI^E. 



pinnis infimis obliquis vel semi-triangu- 

 laribus 11 cm. longis basi latissimis 9 cm. latis 

 latere superiore 1-2 cm. latis latere inferiore 7 cm. 

 latis basi ad costam pinnatifidis, pinnulis vel 

 segmentis infimis (latere inferiore) longissimis 



lineari -lanceolatis 



Fig. 98, Dryopteris kusukusentns HAYATA ; a, the 

 plant ; b, a scale on the stipe ; c, apica ."portion of a pinna ; 

 d, e, hairs on the frond. 



cm. longis 18mm. 

 latis apice acumi- 

 natis basi contractis 

 a se l cm. remotis a 

 costa angulo 50 egres- 

 sis, margine regulariter 

 lobulatis, lobulis 

 oblongo-rectangularibus 

 apice obtusissimis basi 

 latissimis 6 mm. longis 

 4 mm. latis ; textura 

 herbacea. Frons medio 

 sursum sorifera. In- 

 dtisium rotundato- 

 cordatnm. 



HAB. Kusukusu, 

 Juli., 1912, leg. B. 

 HAYATA et S. SASAKI. 



Very near D. mem- 

 branoides HAYATA, but 



differs only by tlia thicker herbaceous texture. 



Dryopteris (Cyclosorus) laevifrons HAYATA sp. nov. (Fig. 99). Rhizoma? 

 Stipes 70 cm. longus basi circ. 1 cm. in diametro squamis parcissime instructus 

 laevis stramineus, (squamis linearibus circ. 1 cm. longis), sursum pirn) is reductis 

 auriculiformibus 2-4 instructus, auriculis triangularibus lobulatis 1 cm. longis 

 1 cm. latis basi non adnatis sessilibus apice obtusis vel rotundatis a se 5 cm. 

 remotis. Frons 90 cm. longa 25 cm. lata in ambitu lanceolata apice longe 

 acummatissima basi acuta pinnata, pinnis subalternatis linearibus, inferioribus 



