104 



POLYPODIACEAE 



(Masam.) H. Ito; Phymatodes ya\uinsulans (Masam.) Ta- 

 gawa ^Yakushima-uraboshi. Evergreen; rhizomes creep- 

 ing, 4-6 mm. across, glaucous, densely scaly, the scales subulate- 

 lanceolate, about 3 mm. long, long-acuminate, nearly entire, 

 ferrugineous at base; stipes slender, 4-6 cm. long, glabrous, 

 lustrous; blades thinly chartaceous, broadly ovate-deltoid, 5-10 

 cm. long, nearly as wide, pinna tiparted, glabrous; segments 3-4 

 pairs, linear-lanceolate, 8-12 mm. wide, obtuse, the lowest 

 horizontally spreading and short-decurrent, nearly entire, with 

 remote minute incisions on the lateral veins; sori round, about 



2 mm. across, in a row on each side of the costa. Shikoku, 



Kyushu (Yakushima) ; rare. 



3. Crypsinus hastatus (Thunb.) Copel. Polypodium 

 hastatum Thunb.; Phymatodes hastata (Thunb.) Ching; 

 Phymatopsis hastata (Thunb.) Kitag. ex H. Ito; Polypodium 



hastatum var. yoshinagae Makino ^Mitsude-uraboshi. 



Evergreen; rhizomes creeping, 3-4 mm. across, densely scaly, 

 the scales membranous, spreading, brown, linear-subulate, 3-4 

 mm. long, long-filiform at the tip, subentire; stipes to 22 cm. 

 long, straw-colored, often purplish brown at base, lustrous; 

 blades simple or frequently ternately parted, lanceolate, 15-35 

 cm. long, 10-15(-20) cm. wide, acuminate, the smaller blades 

 oblong to ovate, 3-5 cm. long, obtuse; pinnae subentire or 

 rarely lobulate, more or less glaucescent beneath, rounded to 

 broadly cuneate at base; veins slender, spreading, the veinlets 

 not visible; sori round, 2-3 mm. across, in 2 series on the 



pinnae, nearer the costa than the margin. Rocks and walls; 



Hokkaido, Honshu, Shikoku, Kyushu; common. ^Korea, 



Manchuria, Ryukyus, Formosa, and China. 



4. Crypsinus engleri (Luerss.) Copel. Polypodium 

 engleri Luerss.; Phymatopsis engleri (Luerss.) H. Ito; Phy- 

 matodes engleri (Luerss.) Ching Taka-no-ha-uraboshi. 



Evergreen; rhizomes long-creeping, about 3 mm. across, 

 densely scaly, the scales membranous, ascending, red-brown. 



linear-lanceolate, 3-6 mm. long, filiform at the tip, slightly 

 broadened and appressed to the rhizome at base, entire; stipes 

 5-15 cm. long, remote, usually shorter than the blades, 

 lustrous, often brownish or purplish brown at base; blades 

 firmly chartaceous, simple, linear-lanceolate, 10-30 cm. long, 

 12-25 mm. wide, obtuse, or rather abruptly acuminate, often 

 cuneately narrowed at base, subentire to undulate, glabrous, 

 often glaucescent beneath; costa rather stout, raised beneath, 

 sulcate above, the veins spreading, slender, the veinlets in- 

 visible; sori superficial, round, about 2.5 mm. across, in 2 

 series on upper part of blade, slightly nearer the costa than 



the margin. Tree trunks; Honshu (Izu Prov. and s. Kinki 



Distr.), Shikoku, Kyushu; rare. Korea (Quelpaert Isl.) and 



Formosa. 



5. Crypsinus yakushimensis (Makino) Tagawa. Poly- 

 podium engleri var. ya\ushimense Makino; Polypodium ya\u- 

 shimense (Makino) Makino; Phymatopsis ya\ushimensis (Ma- 

 kino) H. Ito; Phymatodes ya\ushimensis (Makino) Tagawa 

 HiME-TAKA-No-HA-URABosHi. Evergreen; rhizomes slen- 

 der, long-creeping, 1.5-2 mm. across, rather densely scaly, 

 the scales thinly membranous, ascending to obliquely spread- 

 ing, pale- to rusty-brown, linear-subulate, 2-2.5 mm. long, con- 

 torted at the tip; stipes rather firm, straw-colored, slender, 

 3-10 cm. long, as long as to shorter than the blade; blades 

 chartaceous, broadly linear to narrowly lanceolate, 5-20 cm. 

 long, 5-10 mm. wide, gradually long-acuminate, sometimes 

 glaucescent beneath, subobtuse at the tip, often abruptly acumi- 

 nate at base, remotely crenate-undulate to subentire; costa 

 slender, the veins ascending, very slender, scarcely visible, the 

 veinlets obsolete; sori depressed, about 2.5 mm. across, in 2 

 series on upper part of blade, slightly nearer the costa than the 

 margin. Kyushu (Yakushima) ; rare. Ryukyus and For- 



11. GRAMMITIS Sw. Hime-uraboshi Zoku 



Small epiphytes; rhizomes erect or short-creeping, rarely elongate, dictyostelic; fronds approximate or tufted, the stipes not 

 jointed at base; blades membranous to fleshy or coriaceous, simple, lanceolate or linear, entire or rarely crenate to shallowly 

 lobed, hairy or glabrescent, not scaly; costa usually prominent, the veins typically free, forked, sometimes somewhat anastomos- 

 ing; sori typically on the lowest anterior veinlet of the forked veins, thus forming a single row on each side of the costa, rarely 

 more of the veinlets with sori and forming several rows or the sori somewhat scattered, superficial or sometimes impressed or 



immersed; paraphyses filamentous or more often absent. About 150 species, subantarctic regions north to the W. Indies, 



Africa, and Japan. 



1. Grammitis dorsipila (Christ) C. Chr. & Tard.-Bl. 

 Polypodium dorsipilum Christ; P. asahinae Ogata; G. asahinae 



(Ogata) H. Ito Hime-uraboshi. Rhizomes very short, 



ascending, rather densely scaly, the scales membranous, lanceo- 

 late to oblong-lanceolate, about 2 mm. long, short-acuminate, 

 entire; fronds tufted, erect, thinly clothed with reddish brown 

 spreading hairs about 0.5-0.7 mm. long; blades linear-oblanceo- 

 late to broadly linear, 2-8 cm. long, 2-4 mm. wide, obtuse to 

 rounded, entire or obsoletely undulate on margin, gradually 

 attenuate at base, long-decurrent on the very short, indistinct 



sdpe, loosely involute on margin when dry, with a row of 

 hydathodes on each side on upper surface; costa and veins 

 obscure, the veins obliquely spreading, simple or once forked, 

 the anterior branch (veinlet) slightly longer than to as long as 

 the posterior; sori round or elliptic, dorsal or subterminal on 

 the anterior veinlet, forming a row on each side along the 



costa. Mossy tree trunks in mountains; Honshu (Izu Isls.), 



Kyushu (Satsuma Prov.) ; rare. Ryukyus, China, and Indo- 

 china. 



12. XIPHOPTERIS Kaulf. Okubo-shida Zoku 



Small epiphytes; rhizomes creeping, dictyostelic, with ovate, acuminate, entire scales; fronds not jointed with the rhizome, 

 blades mostly herbaceous, linear, pinnatifid to pinnate, hairy to glabrescent; veins solitary on the pinnules or pinnae, simple or 

 once forked; sori dostal or terminal on the veins, on the anterior branch (veinlet), if this present; sori usually round, superficial, 

 without paraphyses. About 50 species, in the Tropics of both hemispheres. 



