58 



1887; T. Makinol Aug. 1889; S. Yanol herb. So. Coll. Imp. Univ. 

 Tokyo, Aug. 1889)., Nanokawa-mura {K. Watanabe ! Feb. 28, 1891). 



Well marked species. The form of sori intermediate between Lastrea 

 and Polystichum, as in Aspidium varium Sw. I have named it in honour 

 of my friend Yoshisato Yoshinaga, who had greatly contributed to the elucida- 

 tion of Fern Flora in the province of Tosa in Shikoku Island. 



Nephrodium (Lastrea) polypodiforme Maldno nom. nov. 



Caudex long, slender, horizontally creeping, loosely rooting below 

 throughout, with laxly disposed basal remains of old stipes, scaly towards 

 the apical end ; scales darkish-ferruginous, membranaceous, linear-lanceolate, 

 long acuminate, entire. Stipes very few or often single upon the caudex, 

 erect, very slender, longer than the frond, naked, but scaly at the basal 

 portion, darkish stramineous. Frond ovate-lanceolate, 13-33 cm long, 

 5-14 cm broad, simply pinnate but pinnatifid above, acuminate, chartaceo- 

 herbaceous, darkish olivaceous when dry, hirsute and thinly scaly along 

 the midrib of pinnae and superior portion of the main rachis ; pinnte distant 

 from one another, about 10-12 on each side, spreading, lanceolate, falcate, 

 shortly petioled, obtuse or subtruncate at the base, but sessile, moreover 

 adnate to the rachis in the superior, slenderly acuminate, regularly pinnatifid 

 with ovate or oblong segments sharply serrulate towards the obtuse apex 

 and close sinuses, but in the superior crenato-iobate, the upper lower 

 segment often larger than the rest ; veins spreading, often slightly curved, 

 pinnate ; veinlets erect-patent, all free, simple, curved, 1-9 on each side, 

 rather approximate ; rachis slender, narrowly winged above. Sori copious, 

 reniform, arranged in two rows a little apart from it on both sides of a 

 vein of the segments, all dorsal on lower part of veinlets ; indusium small, 

 not conspicuous, horseshoe-shaped, membranaceous, pale-brownish, with 

 ciliated margin, smaller than the heap of sporangia, deciduous. 



Aspidium polypodiforme Makino Notes on Jap. Plants XV. in Bot. 

 Mag., Tokyo, VI, 1892, p. 46. 



Nom. Jap. Uraboshi-nokogiri-shida (T. Makino). 



Hah. Prov. Buz en : Mt. Iwaga-dake (Z. Matsumura ! herb. Sc. Coll. 

 Imp. Univ. Tokyo, July 17, 1882) ; Prov. Tosa : Karatani in Takaoka-gori 

 (Y. Yoshinaga ! herb. loc. cit, 1887; T. Makino \ Aug. 12, 18S7, 1889, 

 Dec. 1891), Oyashiki in Ogawa-mura (T. Makino ! Nov. 1892). 



This is rather a rare species which is found in the middle and 



south-western parts of Japan. 



(To be continued.) 



