21 



This fern is well distinguished by its retaining power of green colour 

 even when dried. Mettenius' original example has a too small frond, 

 when compared with ordinary ones growing spontaneously in forested place 

 on mountains of this country. 



Aspidium aristatum Sw. var. simplicior Maldno var. nov. 



Stipe slender, longer or shorter than the frond, scaly throughout hut 

 much densely so towards the base, stramineous ; scales ferruginous-brown or 

 fuscous-brown, linear, hairy-acuminate, intermixed with hairy ones. Frond 

 ovate, abrupt above and with a prolonged acuminate terminal pinna at the 

 apex, subtripinnate, coriaceous in texture, naked and more or less nitid 

 above, more or less minutely scaly towards the costse of pinnules beneath, 

 viridescent when dried ; main rachis slender, scaly ; pinnas 3 to 5 on each 

 side, patulous or erect-patent, laxly placed, shortly petioled, narrowly lanceolate, 

 slightly falcate, acuminate, often albescent at the centre, the lowest one 

 largest and each with a large branch pinna at the base on the outside ; 

 pinnules numerous, closely placed, patulous, oblong-lanceolate, slightly falcate, 

 very shortly pedicellate or sessile, obliquely cuneate at the base, obtuse with 

 a spinulose tooth at the apex, spinulosely lobulate-serrulate, the inferior 

 ones usually subpinnate or pinnatifid. Sori copious, larger than those of 

 the typica, arranged nearer the margin than the costa of pinnules. 



Eah. Prov. Tosa : Takaoka-gori {T. Maldno \ 1884, 1889), Tokano 

 (T. Malcmo\ May 18, 1889.), Yasui (T. Yosldnaga\ herb. Sc. Coll. Imp. 

 Univ. Tokyo) ; Prov. Iyo : Nametoko {Z. Umemura ! June 28, 1896) ; 

 Prov. IsE : Hikawa-mura in Ichishi-gori (Z. Ume^mcra ! Oct. 13, 1895). 



It has the simpler form than the type, and in appearance it is like 

 Aspidium amahile Blume. 



Nephrodium Filix-mas Rich. var. polylepis Maldno. 



Aspidium polylepis Pranch. et Hav. Enum. PI. Jap. 11. pp. 236, 631. 



Nom. Jap. Bliyama-lcumaioarcM. 



Hah. Prov. Shinano : Mt. Ondake {R. Yatabe ! herb. Sc. Coll. Imp. 

 Univ. Tokyo, July 27, 1880) ; Prov. Suruga : Mt. Fuzi {E. Yatabe and 

 Z. 3Iatsu7nura\ herb. 1. c. July 25, 1881); Prov. Buzen: Mt. Inugadake 

 (Z. Matsumura ! herb. 1. c. July 18, 1882) ; Prov. Echigo : Mt. Haruna 

 {R. Yatabe ! and S. Okubo ! herb. 1. c. July 17, 1886) ; Prov. Musashi : 

 Mt. Yokami (T. Mahino ! July 16, 1888), Mt. Buko (T. Mahino ! July 20, 



