PoL-iTODIACEAE 



103 



across, the scales membranous, linear-lanceolate, 5-6 mm. long, 

 gradually acuminate, sparsely toothed, clathrate; stipes 40-70 

 cm. long, 4-7 mm. across, naked except for a few withered 

 scales toward base, straw-colored; blades narrowly ovate, 40-60 

 cm. long, simply pinnate, the rachis winged in upper part; 

 pinnae thinly herbaceous, 7-11 pairs, obliquely spreading to 

 ascending, linear-lanceolate to broadly linear, 12-25 cm. long, 

 the fertile 1-2 cm. wide, the sterile to 3 cm. wide, gradually 

 narrowed to the subcaudate tip, narrowed at base, more or 

 less decurrent on the rachis, entire or undulate; costa more 

 prominently raised beneath, the veins and veinlets very slen- 

 der, usually slighdy raised on both sides; sori linear, 1-1.8 



cm. long, obliquely ascending to spreading. Moist woods 



along streams; Shikoku, Kyushu. Ryukyus, Formosa, 



China to India, and Philippines. 



3. Colysis shintenensis (Hayata) H. Ito. Polypodium 

 shintenense Hayata; P. wrightii var. lobata Rosenst.; P. 

 ellipticum var. simplicifrons Christ; C. simplicijrons (Christ) 



Tagawa Hitotsuba-iwa-hitode, Shinten-uraboshi, Wa- 



KAME-SHiDA. Rhizomes long-creeping, the fronds remote, the 

 scales dense, brown, ascending, linear-lanceolate, 4-5 mm. 

 long, clathrate; stipes slender, pale stravi'-colored, naked, 20-40 

 cm. long; blades herbaceous, mostly pectinately parted in lower 

 half, or simple, lanceolate, 15-35 cm. long, 2-5 cm. wide in 

 the unlobed portion, cuneate at base, decurrent on the stipe, 

 the winged part shorter than the blade, glabrous, the segments 

 nearly horizontally spreading, narrowly lanceolate, to 12 cm. 

 long, 1-1.5 cm. wide, undulate to slightly crispate; sori linear, 



to 2.5 cm. long, spreading or obliquely ascending. Honshu 



(Izu and Kii Prov.), Kyushu. Formosa. 



4. Colysis wrightii (Hook.) Ching. Gymnogramme 

 wrightii Hook.; Polypodium wrightii (Hook.) Mett. ex Diels, 



non Bak. Yari-no-ho-kuriha-ran. Rhizomes slender, 



long-creeping, 2-2.5 mm. across, densely scaly toward the tip, 

 the scales linear-lanceolate, gradually long-acuminate, 3-4 mm. 

 long; fronds 10-40 cm. long, remote; stipes slender, straw- 

 colored, broadly winged on upper half in longer ones, winged 

 to the base in shorter ones; blades chartaceous-herbaceous, 

 simple, broadly lanceolate to deltoid-lanceolate, 7-25 cm. long, 

 2.5-6 cm. wide, gradually acute to acuminate, cuneate at base, 

 long-decurrent on the broadly winged stipe, entire or crispate; 

 costa straw-colored to pale brown, the veins and veinlets very 

 slender, sHghtly visible on both sides; sori spreading, parallel, 



rather close, 1-2.5 cm. long. Kyushu (Osumi Prov. incl. 



Yakushima and Tanegashima). Ryukyus, Formosa, and 



China. 



5. Colysis hemionitidea Presl. Polypodium hernioniti- 

 deum (Presl) Mett.; Pleopeltis hemionitidea (Presl) Moore; 

 Polypodium ensatosessilijrons Hayata; C. hemionitidea var. 

 ensatosessilifrons (Hayata) Tagawa; Microsorium ensato- 

 sessilijrons (Hayata) H. Ito Taiwan-kuriha-ran. Rhi- 

 zomes long-creeping, scaly, 3-4 mm. across, the fronds remote, 

 the scales membranous, clathrate ;stipes 5-25 cm. long, straw- 

 colored, sparsely scaly while young, usually winged; blades 

 chartaceous-herbaceous, simple, lanceolate to broadly so, 15-40 

 cm. long, 4-6 cm. wide, acuminate, gradually narrowed or 

 cuneate at base, decurrent on the stipe, entire or obsoletely 

 undulate; costa raised, stouter beneath, the veins numerous, 

 spreading, raised beneath, parallel, slighdy flexuous, the vein- 

 lets raised beneath; sori interrupted, in a series between the 

 lateral veins, round, sometimes oblong or elongate by fusion 



of several sori, about 2 mm. across. Moist places in woods; 



Kyushu (Yakushima and Tanegashima) ; rare. Ryukyus, 



Formosa, China to India, and Philippines. 



10. CRYPSINUS Presl Mitsude-uraboshi Zoku 



Epiphytic; rhizomes creeping, dictyostelic, the scales lanceolate, attenuate or setaceous; stipes remote, jointed at base; blades 

 firm to coriaceous, usually dimorphic, simple or pinnate, serrulate or remotely notched to toothed; main veins usually evident, 

 connected by less evident branched cross veinlets to form areolae; sori on the cross veinlets, usually in a single row on each side 



of the costa and one between each pair of veins, impressed or superficial; paraphyses absent or filamentous. More than 40 



species, Japan to India and Malaysia, best developed in New Guinea. 



lA. Fronds deciduous; blades membranous, pinnately parted, minutely and closely toothed 1. C. veitchii 



IB. Fronds evergreen; blades chartaceous, simple, or ternately to pinnately parted, subentire or remotely toothed or notched between the 

 main lateral veins. 



2A. Blades pinnatiparted; segments 3-4 pairs, obtuse 2. C. yaktiinstdaris 



2B. Blades simple or ternately parted. 



3.\. Blades often ternately parted, sometimes simple, broadest near base, gradually narrowed to the tip, usually shorter than the 



stipe 3. C. hastatus 



3B. Blades mostly simple, broadest near middle, narrowed at both ends, as long as to longer than the stipe. 



4A. Sori superficial; stipes frequendy brownish purple at base 4. C. engleri 



4B. Sori depressed; stipes straw-colored 5. C. yakushimensis 



1. Crypsinus veitchii (Bak.) Copel. Polypodium veit- segments 1-4 pairs, spreading, narrowly oblong to lanceolate, 



chii Bak.; Phymalodes veitchii (Bak.) Ching; Phymatopsis 6-12 mm. wide, obtuse to acute, decurrent on the winged 



veitchii (Bak.) H. Ito; Polypodium shensiense var. filipes rachis, the lowest slighdy narrowed at base on posterior side, 



Christ; Phymatopsis veitchii var. filipes (Christ) H. Ito die terminal the longest, linear-lanceolate to lanceolate-ob- 



MiYAMA-URABOSHi. Rhizomcs long-creeping, 2-2.5 mm. long, 2.5-6 cm. long, usually acuminate, often acute or obtuse 



across, densely scaly, the scales ascending, brown, mem- in smaller fronds; sori round, about 2 mm. across, in 2 



branous, deltoid-lanceolate, 2-2.5 mm. long, ciliate; fronds series on the terminal or upper pinnae, rarely over the \vhole 



deciduous; stipes slender, remote, 2-10 cm. long, naked or blade, slighdy nearer the costa than the margin. Rocks in 



with a few scales at base; blades membranous, ovate-deltoid, mountains; Hokkaido, Honshu, Shikoku. Korea (Quel- 



4-10 cm. long, 3-6 cm. wide, truncate at base, pinnately parted, paert Isl.), China to Tibet. 



minutely and closely toothed, glabrous on upper side, some- 2. Crypsinus yakuinsularis (Masam.) Tagawa. Poly- 



what glaucous beneath, thinly scaly beneath while young; podium yakiiinsulare Masam.; Phymatopsis yakuinsularis 



