1904.] 



OBSERVATIONS ON THE FLORA OF JAPAN. 135 



Woodsia (Euwoodsia) sinuata (Hook.) Christ Fil. Faurieanoe IV. in 

 Bull. Herb. Boiss. 2 me Ser. II. p. 830 (1902), non Makino. 



Woodsia polysiichoides y. sinuata Hook. Gard. Ferns (1862), tab. 32, 

 fig. 3 ; Hook, et Baker, Syn. Fil. ed. 2, p. 48 ; Yabe in Bot. Mag., Tokyo, 

 XVII. p. 63, excl. syn. W. sinuata Makino. 



About 6-16 cm. in height. Caudex short, ascending, thick ; roots brown- 

 ish-black, with root-hairs. Stipes tufted, erect, or erect-patent, stramine- 

 ous to deep-rufous, clothed with scales at the base, but hairy with fibrillose 

 scales throughout and loosely mixed with ovato-lanceolnte or subulato-lanceolate 

 very sharply acuminate scales as is the rachis, furnished with a very oblique 

 incomplete joint at the top, about 2-5 cm. long ; basal scales rufo-isabel-colour- 

 ed, ovate to ovato-lanceolate, very attenuated!}' acuminate, very laxly lacerate, 

 concave, membranaceous. Frond lanceolate, longer than the stipe, about 

 attaining 13 cm. long, 2^ cm. broad, bipinnatifld, membranaceous, thinly 

 covered with very sharply acuminate linear-lanceolate to fibrillose scales on 

 veins and veinlets beneath, subglabrous or very sparingly pilose above ; 

 pinnae about 8-16 on each side, usually subopposite but often alternate 

 above, spreading, more or less remote, but much remote below, deltoid or 

 deltoid-ovate, the upper ones passing into ovato-oblong to ovato-lanceolate and 

 often subfalcate in form, obtuse at the apex, subtruncate or cuneato-truncate 

 and very shortly petiolate-at the base, but sessile in superior ones, subauricu- 

 late in the upper lowest side, pinnatifid, but entire or crenato-lobed in the 

 superior ones, lobes about 3-5 on each side below, spreading, oval-ovate 

 or elliptical -ovate, rounded at the apex, entire and often somewhat reflexed 

 on margin ; veinlets free, loose, pauci-pinnate or forked ; rachis straight, 

 slender, rufous or stramineous. Sori intramarginal, about 3 to 8 to a lobe, 

 small, rather closely placed, dorsal near the end of the veinlets ; indusium 

 pateriform, fragile, irregularly parted or lobed into a few suboval or suboval- 

 ovate thin lobes not exceeding the sori, with long incurved cilia on margin. 

 Sporangia : the case rounded ; pedicel very short. 



Hah. Corea (Chosen): Seoul in Mt. Namsan, Kyong-gui (U. Faurie ! 

 no. 718, May 1901 ; T. Uchiyama ! herb. Sc. Coll. Imp. Univ. Tokyo, July 

 30, 1902). 



I have not yet seen in Japan. My specimens are due to the kindness 

 of Bev. Urbain Faurie. 



As regards to the indusium, W. sinuata (Hooker) apparently belongs 

 to the sect. Emcoodsia, but as to the articulation of the stipe, it is 

 similar to that of W. polysiichoides Eat., which is placed within the sect 

 Fhysematium by many authors. 



