rOLYrODL\CE.T;. "241 



segmeuto tsrmiuali lorige lineari lOcm. longo; pinnis jnxta terminalem 16 cm. 

 longis ; tsxtura membranaceo-subcoriacaa ; pagina raargiue sorifera iutsgra, 

 sed prope apicem non sorifeiu minuto crenata. RUncliis pinuarum supra 

 profunde sulcata utroque latere sulcorum l-lamellata et remote setulosa, setulis 

 2 mm. lougis latere complanatis a se l-l^ cm. remotis ; costa vel costula seg- 

 menti supra impressa glabra subtus elevata, Tenis lateralibas liberis plerum- 

 que duplicato-fm"catis (venis a basi furcatis, ramis venarum furcatis). Sori 

 marginales a prope basin ssgmentorum usque ad supra medium extensi, ab 

 apice segmentorum 1 cm. distantes. 



Hab. Arisau, fere 7-6000 iied. alt., leg. B. mY.VT.v et S. Sasaki, 1912 , 

 Jau. 



Yeiy near Ptcris cxcelsa Gaud. (Hook. Sp. Fil. H. p. 183 t. 1.36 ; 

 Bedd. Feru. Brit. Ind. t. 218 ; aud Herb. Corean. tested by Dr. T. N.ak.aiV, but 

 om-s is dLfterent from that in having pinnules or segraents witli broader base 

 nud veiy mudi more aciuuiuate liuear apex. It should bo better regarded as a 

 variety of tlie sarae species aud should be uaraed P. cxcdsa var. excelsissima. 



Pteris pellucida Pk- 



Hab. Arisau, leg. B. Hayata et S. Sasaki, Jau., 1912. 



Formosan specimen is considerably diflereut from the uamed species by 

 the rauch narrower pinnse of the fertile and sterile fronds, as far as I cau 

 draw from the descriptions given in HoOK. Bak. Sy. Fil. and HoOK. Sp. 

 FiL lu the Philippiue specimens, there is a fern labelled P. pzJlucida 

 which is exactly identical with om- fern. I couject that this Pteris may 

 vary a veiy wide range. At prasent, I am merely followiug the PhiUppiue 

 plant to take this uame for oiu- feru. The description iu Hook. et Baker Syu. 

 Fil. p. 151. shows that the fern has ofteu lower pinna? 8 iu loug 1 iu. broad 

 The figure given iu Hooker Sp. FiL II. t. 126-B shows also a fonn with broader 

 fronds thau thoso of onrs. 



Pteris setuloso-costulata Hayata sp. uov. (Fig. 168). Ehizoma? Stipes 

 30-40 cm. lougus 3 mm. latiis stramineus glaber. Frons oblongo-hxneeolata 60 

 cm. longa 30 cm. lata apice triangulari-acuta piuuata vel bipinnata iu partibus iu- 

 fimis, pinnis suboppositis inferioribus a ss 4-8 cm. remotis a rhachibus augulo 

 <30' egi'essis, pinnis infimis maguis 18 cm. lougis semitriangularibus basi 14 cm. 



