﻿

loof,] OBSERVATIONS ON THE FLORA OF JAPAN. 85 



broad, simply pinnate, flaccid in texture ; rachis slender, green and glabrous 

 in front, virido-nigrescent and very thinly scaly darsally, narrowly winged 

 above ; pinna? about 13-14 on each side, usually alternate, spreading, 

 more or less apart or nearly closely placed above, very shortly petiolate but 

 sessile and confluent to the rachis-wings above, lanceolate and somewhat 

 falcate, obliquely lato-cuneate at the base having a margin parallel to ra- 

 chis, auriculate with a short-ovate rounded-tipped lobe at the upper base 

 and the auricle depressed in the superior ones, coarsely crenate on both 

 margins and the teeth irregularly few-several-den ticulat-e, membranaceous, 

 green, glabrous above, thinly dispersed with minute scales beneath, the 

 lower pinna? attaining about 9J cm. long, nearly 2 cm. broad ; midrib 

 slender ; veins delicate, erect-patent, flexuous ; veinlets delicate, pinnately 

 arranged, not close, simple, but often furcate in those of the auricle. 

 Sori adnate to the upper basal veinlet and sometimes also having a short 

 one adnate to the next veinlet, 1 to several to an auricle, principal ones 

 in one row on each side, slightly nearer to the midrib than the margin, 

 erect-patent, moderately apart, linear, arcuate, attaining 10 mm. long, 

 mixed with diplazoid ones ; indusium thinly membranaceous, entire. 



Nom. Jap. Iyo-kujahu (nov.). 



Hab. Pro v. Iyo : Mt. Iwaya in* Kamiukena-gori (K. Ohudalra ! Oct. 

 28, 1905). 



This fern comes very near to Diplazium Wichurce Metten., but the frond 

 is flaccid and much thinner ; pinna) fewer and broader ; sori larger and 

 compound. It grows in very shady places associated with Diplazium ja- 

 vanicum Makino ( = A!lantodia javanica Bedel. =Asp!enium javanicum 

 Bl.) and Nephrodium viridescens Baker, in above-cited locality. 



Arcterica nana (Maxim.) Makino. 



Andromeda nana Maxim, in Bull. Acad. Petersb. XVIII. p. 47 (1872), 

 et in Mel. Biol. VIII. p. 615 (1872); Franch. et Sav. Enum. PI. Jap. I. 

 p. 284, et II. p. 526; H. de Boiss. in Bull. Herb. Boiss. V. (1897) p. 912. 



Pieris nana Makino in Bot. Mag., Tokyo, VIII. (1894) p. 213, et 

 XVIII. (1904) p. 18 ; Yabe et Endo, PI. Shimushu Isl. in Bot. Mag., To- 

 kyo, XVIII. (1904) p. 190. 



Lyonia nana Makino MSS. 



Gassiope oxycoccoides A. Gray in Proc. Am. Acad. XX. (1885) p. 

 300. 



