16 



roots below throughout, distantly placed with small protuberances which are 

 basal remainders of old stipes above, simple or laxly ramose, scattered with very 

 minute deltoid or deltoid- ovate acuminate subpeltate brownish-black deciduous 

 scales ; scales which are clothed on the basal knot of stipes very minute, 

 deltoid-ovate, acuminate, closely reticulated with blackish-brown venules, 

 irregularly eroso-dentate on the margin. Fronds persistent, simple, in a 

 small number, distant, linear-lanceolate, distinctly stipitate, gradually attenuat- 

 ed acuminate with a fine obtuse apex, gradually narrowed towards the base 

 and at length decurrent to the stipe, entire or slightly repand, narrowly involute 

 along the margins, 8-20 cm. long, 4-13 mm. or rarely 17 mm. wide, mem- 

 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 

 li-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, l|^-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. 



Polypodium sesquipedale Wall, forma leiopteris Makino Phanerog. et 

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



Nom. Jap. Miyama-nohisliinobu. 



Hal). 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 {li. Yaiahe ! herb. 1. c. Aug. 9, 1888 ; Z. Umemura ! Aug. 

 18, 1897) ; Nishidani-mura {K. Watanahe ! herb. I. c. March 3, 1891) ; 

 Prov. Tosa: Nanokawa {T. Blaldno ! Nov. 1884, June 10, 1885), Kitagawa 

 in Nanokawa {T. Makino \ Nov. 3, 1887), Mt. Tebako {T. 3Iahino\ Aug. 

 1885) ; Prov. Mikawa : Mt, Ohausu in Hadzu-gori (G. Nagura ! July 13, 

 1895); Prov, Musashi : Mt. Buko {T. 3IaJcino\ July 20, 1888); Prov. 

 Sagami: Mt. Hakone {T. MaUno\ Sept, 27, 1886), 



