l'OLYrODIACE-E. 



333 



moie iicutcly tootlied lobes of the pinuules ; also uear a form of Folystichum 

 aculeafum Sw., but separaLle from it l)y tlic much shorter subtriaugular fronds 

 and subentire scales. The pinnf\3 or pinuides of this fern are very much like 

 those of P. aculeatum, but the shape of fronds and scales are lilce those of P. 

 varium. The ncw fern loolcs to be jast an intermcdiate species of P. aculeatum 

 and P. varium. 



Polystichum niitakayamense Hayata (Fig. 137-i, et 138) Fl. Mont. 

 Formos. p. 243, t. 41 ; Pohjstichum stenophyUum Hayata ]\Iater. Fl. Formos. p. 

 426 (non Chuist). Descriptio auctata : Rhizonia ascendeus apice frondes ca3sp- 

 itosum gerens. Pagina frondis supra ghxbra subtus squamis lepidiformibiTS cou- 

 spersa, squamis ovatis apice caudatii-acumiuatis basi 

 peltatis rotuudatis margine ciliato-dcutatis § mm. lougis. 

 Indusium minutum polygono-rotuudatum peltatum mar- 

 giue crosum ^ mm. iu diametro. 



Fig. 137; a, a pirma of Polysiiclium leptocmdon Hay.; b, 

 Polyslichmn longist'pes Hay.; c, a sorus of the same Rpeoics; 

 <1, Polystichum obtwo-auriculaiim Hay'.; e, a sorus of tlie sarae 

 sjjecies; f, Pobjstichum pseiido-3Iaximowicziill.Vi:.; ^, a sorus of 

 tlie same specips ; li, a scale on the rhachis of the sarae species ; 

 i, a scale of Polystichum niiiahayanvnise Hay-; j, a pinna of 

 Polysiichum simplicipinnnm Hay. 



Fig. 138, Poly- 

 stichum niitakaya- 

 mense Hayata x \. 



