61 



branaceo-coriaceous, glabrous, but thinly disparsed with very minute deltoid 

 acuminate scales on the midrib towards the base beneath, deep-green and 

 minutely nigro-punctate above, paler beneath ; midrib slender, prominent and 

 darkish above and less prominent and stramineous beneath; veins invisible 

 superficially, erect-patulous ; veinlets rather finely anastomosing, with simple 

 or divergently forked free venules within their areoles \ stipes slender, about 

 1^-4 cm. long, hard, darkish, terete, with two fibro- vascular bundles in the 

 centre, articulated at the base, from which they finally off way. Sori in 

 two rows between the midrib and margins very slightly nearer the former 

 than the latter in the upper half or one-third of the frond, distant about 

 2 to 5 mm. to one another, situated between veins, rounded, or sub-orbicular, 

 or oval, 1J-2 mm. across, yellow, covered with minute peltate scales when 

 young ; scales sub-orbicular or oval, irregularly lobulate on the margin, 

 with stout and darkish-brown venules, shortly stalked, soon falling way. 

 Sporangia numerous, compact, intermixed with peltate and long-pedicellate 

 paraphyses ; the case slightly compressed, obovate ; the pedicel slender, longer 

 than the case. , 



Poly podium sesquipedale Wall, forma leiopteris Makino Phanerog. et 

 Pterid. Jap. icon, illustr. I. tab. VIII. excl. syn. 



Norn. Jap. Miyama-nokishinobu. 



Hob. Prov. Shimotsuke : Nikko (Herb ! Sc. Coll. Imp. Univ. Tokyo^ 

 Oct. 8, 1879) ; Prov. Idzu : Yoshida (Herb ! 1. c. June 4, 1883) ; Prov. Iyo: 

 Mt. Ishidzuchi (R. Yatabe ! herb. 1. c. Aug. 9, 1888 ; Z. Umemura ! Aug. 

 18, 1897) ; Nishidani-mura (K. Watanabe ! herb. 1. c. March 3, 1891); 

 Prov. Tosa: Nanokawa (T. Makino ! Nov. 1884, June 10, 1885), Kitagawa 

 in Nanokawa (T. Makino ! Nov. 3, 1887), Mt. Tebako (T. Makino \ Aug. 

 1885); Prov. Mikawa : Mt. Chausu in Hadzu-gori (G. Nagilra\ July 13, 

 1895); Prov. Musashi : Mt. Buko (T. Makino ! July 20, 1888); Prov 

 Sagami: Mt. Hakone (T. Makino ! Sept. 27, 1886). 



This is widely distributed over Japan, especially in mountain districts. 

 It differs from the typica (Thunb. Fl. Jap. p. 335, et Icon. pi. Jap. Dec. 

 2, tab. 9 ; Makino Phanerog. et Pterid. Jap. icon, illustr. I. tab. IX) by 

 the more distantly placed and thinner frond, much slender rhizome, and much 

 smaller and deltoid scales. My plant seems to be related to a Chinese 

 Fern Polypodium linear e, Thunb. var. contortum Christ (in Baroni et 

 Christ in Nuov. Giorn. bot. italia., Nuov. Ser. IV. 1, 1897, p. 98, tab. L 

 figs. 3, 3, 3 ; 3.), from which it differs by not contorting when dried. 



