62 



ASPIDIACEAE 



toothed, the compound pinnae 15-25 cm. long, 4-6 cm. wide, 

 with a narrowly winged axis, the pinnules 2.5-5 cm. long, 

 1-1.5 cm. wide, acute, cuneate at base, slighdy oblique and 

 somewhat adnate to the axis, toothed, nearly glabrous on both 

 sides; sori median, remote, in 2 series on the ultimate pinnule 

 or in 2-4 series on the simple pinnae; indusia orbicular-reni- 



form, subentire, 1-1.5 mm. across. Honshu (Izu, Ise, Kii, 



and Suwo Prov.), Shikoku, Kyushu; rare. China, Burma, 



and India. 



9. Arachniodes standishii (Moore) Ohwi. Rumohra 

 standishii (Moore) Ching; Lastrea standishii Moore; Poly- 

 stichutn standishii (Moore) C. Chr.; Dryopteris standishii 

 (Moore) C. Chr.; Polystichopsis standishii (Moore) Tagawa; 

 Aspidium laserpitiifolium Mett.; D. viridescens sensu auct. 

 Japon., non O. Kuntze Ryomen-shida. Rhizomes short- 

 creeping; stipes closely approximate, pale green to straw- 

 colored, often brownish, 30-50 cm. long, densely scaly at base, 

 sparsely so above, the lower scales pale brown, membranous, 

 lanceolate, 1-1.5 cm. long, 1.5-2.5(-3.5) mm. wide, gradually 

 acuminate, filiform at tip, entire, the upper scales 3-10 mm. 

 long, linear-lanceolate, broadly cordate; fronds vivid green, the 

 blades thinly herbaceous, oblong-ovate, 40-60 cm. long, 20-30 

 cm. wide, short-acuminate, 4-pinnatiparted to 4-pinnate, the 

 rachis sparsely scaly; pinnae 12-15 pairs, approximate, ob- 

 liquely spreading, short-petiolulate, the lowest with a broad 

 posterior side; ultimate pinnules thinly herbaceous, oblong- 

 ovate, 5-10 mm. long, 3-6 mm. wide, sometimes lobed or parted, 

 acute to obtuse, acutely toothed, vivid green above, slightly 

 paler and with hairlike short scales beneath, very sparsely so 

 above; sori median in 2 series on the ultimate pinnules; in- 

 dusia orbicular-reniform, often reddish when young, entire, 

 1-1.5 mm. across. Woods in mountains; Hokkaido, Hon- 

 shu, Shikoku, Kyushu; rather common. Korea. 



10. Arachniodes maximowiczii (Bak.) Ohwi. Ru- 

 mohra maximowiczii (Bak.) Ching; Nephrodium maxi- 

 mowiczii Bak.; Dryopteris maximowiczii (Bak.) O. Kuntze; 

 Lastrea maximowiczii (Bak.) Moore; Polystichopsis maxi- 

 mowiczii (Bak.) Tagawa; Aspidium commutatum Fr. & Sav.; 

 A. callopsis Fr. & Sav.; A^. cdlopsis (Fr. & Sav.) Palib.; D. 



callopsis (Fr. & Sav.) C. Chr. ^Nantai-shida. Rhizomes 



short-creeping, densely scaly; stipes 15-35 cm. long, pale green, 

 usually chestnut-brown toward base and often on under side, 

 lustrous; scales brown, thinly herbaceous to submembranous, 

 ovate, (2-)4-8 mm. long, short-acuminate, entire, spreading; 

 blades 5-angled, 15-25 cm. long and as wide, tripinnate to 

 tripinnatiparted, glabrous, uniformly green, the rachis pale 

 green, the scales scanty, about 2 mm. long; pinnae petiolulate, 

 spreading, narrowly deltoid-ovate, 10-18 cm. long, short- 

 attenuate, with a broader posterior side, the upper ones ab- 

 ruptly smaller; ultimate pinnules oblong-ovate, 1-2.5 cm. long, 

 obtuse, oblique, short-petiolulate, acutely denticulate; sori 

 sparse, few, at base of the teeth especially on anterior margin 

 of the segments, orbicular-reniform, about 1 mm. across, en- 

 tire, brown, incurved on margin. Woods; Hokkaido, Hon- 

 shu (Kinki Distr. and eastw.). ^Korea. 



11. Arachniodes miqueliana (Maxun.) Ohwi. Aspid- 

 ium miquelianum Maxim.; Dryopteris miqueliana (Maxim.) 

 C. Chr.; Leptorumohra miqueliana (Maxim.) H. Ito; Poly- 

 stichopsis miqueliana (Moore) Tagawa ^Narai-shida. Rhi- 

 zomes elongate, long-creeping, fugacious; stipes 20-50 cm. 

 long, straw-colored to brown, lustrous, dark brown near base, 

 rather densely scaly; scales tardily deciduous, thinly mem- 

 branous, pale brown, spreading, the larger ones lanceolate, 

 entire, abruptly long-acuminate, 4-10 mm. long, the smaller 

 ones narrowly ovate, 1-2 mm. long; blades deltoid, remotely 

 5-angled, 3- or 4-pinnate, 20-50 cm. long, slightly narrower to 

 nearly as broad as long, acuminate, cordate, hairy on both 

 sides, the rachis pale green to yellow-brown, thinly pilose 

 especially in the axils, the lowest pinnae narrowly deltoid- 

 ovate, 15-35 cm. long, oblique, with a dilated base on posterior 

 side, the petioles 1.5-3 cm. long; ultimate pinnules mem- 

 branous, elliptic-ovate to oblong or ovate, sometimes lobed to 

 parted, obtuse or sometimes acute to rounded, cuneate at basej 

 oblique, sessile, vivid green above, slightly paler beneath; sori 

 1-4 on each lobe or segment, orbicular-reniform, reddish in 



the center when young, 0.8-1 mm. across. Hokkaido, 



Honshu, Shikoku, Kyushu. Korea and China. 



9. BOLBITIS Schott Hetsuka-shida Zoku 



Terrestrial; rhizomes creeping, dictyostelic, scaly; stipes sparsely scaly; fronds dimorphic, usually pinnate, rarely simple or 

 bipinnatifid, glabrous, the segments crenate to lobed or incised, with regular areoles along the costas and costules and regular 

 or irregular areoles beyond, free veinlets usually present within the areoles; fertile fronds long-stipitate; sori uniformly covering 

 underside, exindusiate, with paraphyses. About 85 species, in the Tropics, abundant in the Indo-Malayan region. 



1. Bolbitis subcordata (Copel.) Ching. Campium sub- 

 cordatum Copel.; B. na\aii H.Ito; Leptochilus virens sensu 

 auct. Japon., non C. Chr.; B. quoyana sensu auct. Japon., non 



Ching Hetsuka-shida. Rhizomes short-creeping, 4-6 



mm. across; fronds dimorphic; stipes 30-50 cm. long in the 

 sterile, slightiy longer and more slender in the fertile, pale 

 straw-colored; scales appressed, purple-brown, ovate to broadly 

 lanceolate, 2-3 mm. long, most abundant toward base of stipe; 

 sterile blades lanceolate, 40-80 cm. long, 15-30 cm. wide, pin- 

 nate, the terminal pinna abruptly narrowed, lanceolate, pin- 

 naticleft, caudately long-acuminate, sometimes proliferous at 



tip, the rachis while young with purple-brown dentate scales 

 about 1 mm. long; lateral pinnae 8-12 pairs, thinly chartaceous, 

 linear-oblong, 10-15 cm. long, 1.5-3 cm. wide, caudately long- 

 acuminate, rounded-lobulate to crenate-toothed, the lobules 

 usually with an awnlike mucro at base of the sinus, truncate to 

 cuneate and very short-petiolulate at base; costa slender, often 

 slightly rubescent; fertile pinnae 5-9 cm. long, 5-10 mm. wide, 

 obtuse, very short-petiolulate, entire to undulate, entirely cov- 

 ered with sporangia. Woods in hills and low mountains; 



Kyushu (s. distr.). Ryukyus, Formosa, s. China to Indo- 

 china. 



10. ELAPHOGLOSSUM Schott Atsuita Zoku 



Epiphytic or terrestrial; rhizomes short-creeping, scaly, dictyostelic; stipes often tufted, articulate to phyllopodous or not 

 jointed; fronds coriaceous, simple, entire, sometimes with a cartilaginous margin, scaly or glabrate, the veins usually im- 



