rOLYPODIACE,^. 175 



apice iu ambitu abrupte acumiuata basi latissima quadripinuata, pinuis 

 iitroque latere 8-9, iufimis longissimis superioribus gradatim brevioribus ad 

 apicem ad dentem pinua3 terminalis reductis, iuferioribus a se 5 cm. remotis, 

 iufimis 18 cra. lougis triangularibus 10 cm. latis basi latere iuferiore 7 cm. latis 

 latere superiore 4 cm. latis apice acuminatissimis (acumine lineari) basi petio- 

 latis (petiolis 2-3 cm. lougis) piuuulis ordinis primarii infimis (latere iuferiore) 

 8 cm. longis lanceolatis falcato-ascendeuti-recurvis basi latissimis 3i cm. latis 

 apice acumiuatissimis sub-ffiquilateralibus breve petiolulatis, piunulis ordinis 

 secimdarii infimis (latere iuferiore) oblique triaugularibus 2 cm. lougis l^ cm. 

 latis apice obtiisissimis basi subtruucatis breve petiolulatis ; piunulis orclinis 

 tertii iufirais (latere inferiore) oblique obovatis li cm. lougis 4mm. latis apice 

 rotuudato-obtusis basi cimeatis subsessilibus subunilateralibus 1-2-1 obatis, lobis 

 2 mm. lougis totiusque latis obtusissimis ; pinuulis ordinis tertii infimis lateris 

 superioris latioribus majoribus quam iis lateris inferioris. E,liacliis frondis 

 glaberrima valde flesuosa, rhachis x^inuarum miuus flexuosa sursum subalata 

 complanata, rhachis piuuularum subrecta complauata subalata ; piunis inferi- 

 oribus a se 6 cm. remotis, pinnulis ordiuis primarii iuferioribus a se 2 cm. 

 remotis, piuuulis ordiuis secundarii iuferioribus a se 1 cra. reraotis, pinuulis 

 ordiuis tertii iuferioribus a se 5 cm. remotis, piniiis infimis a rhachibus 

 frondium angulo 14(F, pinnis superioribus angulo 90'^ divaricatis, piunulis a 

 rhachibus xiiuuarura angulo obtuso vel augulo recto divaricatis, pinniilis ordinis 

 secmidarii a rhachibus piuuularura ordiuis primarii augulo 70' vel plus acuto 

 ilivaricatis ; frous testura teuuiter herbacea viridis, costis veuis venulis supra 

 <jbscm'e subtus distincte visis tenuissimis. 



Hab. Kinkiho, leg. H. Tsaba, Oct. 1911 ; Mt. Arisan ; Heishana, ad 

 7000 ped. alt., leg. B. Hay.ata et Takeo It6, Mart., 1914. 



Wheu I first examined a herbarium specimen of this feru, I thouglit that 

 it might liave been a feru of scandeut or pendidous Iiabit, as the pinuiB and 

 pinnule are always turuing backwards aud the rliachis is very flexuose. In 

 my last excursion to the island, I found tlie feru, quite contrary to my 

 expectation, staudiug erect or uearly so on the ground. It is very rare ; I 

 could fiiid the fern but ouce in my jomney through the mountains. Some- 

 wkat allied to 1). Maximoiciczii in its habit, sori and size, but greatly differs 



