242 



POLYPODIACE^:. 



latis latere inferiore pinnulis 3-4 gerentibus latere snperiore hand pinnuliferis 

 subsessilibus vel breve petiolatis, pinnulis infimis a rliacliibus pinnaniru 

 angulo 70-90 divaricatis sessilibus late linearibus 13 cm. longis 24 cm. latis 



basi truncatis ad apicem subito acutis ad acumina 

 abeuntibus (acuminibus linearibus 2 cm. longis 3 mm. 

 latis margine crennlatis ad summum acutis) ad rhachin 

 pinnatifidis, segmentis alternis linearibus a rliacliibus 

 pinnularum angulo 80 divaricatis 15 mm. longis 3|- mm. 

 latis apice rotundato-obtusis basi plus minus dilatatis 5 



mm. latis ad basin se continuis 

 approximatis margine integris 

 nervo-marginatis. Textura cliar- 

 tacea supra glabra, costulisutraque 

 pagine elevatis venis venulisque 

 liberis a basi vel a medio furcatis, 

 venulis ad marginem attingenti- 

 bus supra subglabris subtus 

 parcissime minuteque sub lente 

 glanduloso-pil( >sis ; c< istulis pinna- 

 rum utraque elevatis supra pro- 

 funde sulcatis, utroque latere 

 sulcorum anguste lamellatis, 

 lamellis remote minute setulosis, setulis acutis complanatis, segmentis margine 

 toto latere (excepto basi apiceque) soriferis. 



HAB. Mt, Morrison, ad 6000 ped. alt., leg. U. MORI, 1909, (No. 1867); 

 Mt. Arisan, leg. B. HAYATA et S. SASAKI, Jan., 1912. 



Near Pteris Uaurita LINN. (HOOKER et GREV. Ic. Fil. t. 142), but differs 

 from it by the lowest pinnae, wliicli are not biparted, but have 2-3-pinnules 

 on the lower side. This is still nearer Pteris quadriauritci var. setigera 

 (HooK.) (BEDD. Fern. Brit. Ind. t. 202), which has setulose rhachis like that 

 of the present fern. 



Pteris tripartita Sw. 



HAP,. Taito: Nanrio, leg. G. NAKAHARA, Jan., 1906, (No. 703). 



Fig. 168, I'teris sttulosa-jeosMaln HAVATA; 

 a, the plant ; b, a portion of a pinnule ; c, setules 

 on the costa. 



