ASPIDIACEAE 



73 



10-25 cm. wide, acuminate, abruptly contracted at base, the 

 rachis short spreading-pilose and longer hispid; pinnae thinly 

 herbaceous, oblong-lanceolate, 4-12 cm. long, 1.5-2.5 cm. wide, 

 gradually contracted at the tip, caudate, sessile, pinnatiparted, 

 short-hairy on margin and costas on upper side, hispid beneath 

 especially on the costas; pncumatophores at the base of the 

 pinnae beneath subglobose; pinnules narrowly oblong, 4-6 

 mm. wide, rounded at ape.'*:, crenate to subentire, the veins 

 pinnate, the veinlets simple; sori orbicular to elliptic, between 



the costule and the margin; indusia absent. Wet slopes; 



Honshu (Izu, Suruga, and Kii Prov.), Kyushu; rare. 



Formosa and China. 



6. Lastrea quelpaertensis (Christ) Copel. Dryopteris 

 qtidpaertcnsis Christ; Athyritim quelpaertense (Christ) Ching; 

 Thelypteris quelpaertensis (Christ) Ching; Ctenitis quel- 

 paertensis (Christ) H. Ito; Nephrodium montanum var. fauriei 

 Christ; D. oreopteris var. fauriei (Christ) Miyabe & Kudo; D. 

 /(amtschatica Komar.; D. Christiana Kodama; D. oreopteris 



sensu auct. Japoh., non Maxon Oba-shorima. Rhizomes 



short, erect to short-creeping; fronds often more than 1 m. 

 long, deciduous, prominently scaly; stipes tufted, 10-30 cm. 

 long, light green; scales thinly membranous, brown, lanceo- 

 late, linear, or narrowly ovate, 3-8 mm. long, entire; blades 

 oblanceolate, 50-80 cm. long, 12-25 cm. wide, abruptly acumi- 

 nate, gradually narrowed toward the base, bipinnatiparted, the 

 rachis sparsely short-pilose on upper side; scales linear to lin- 

 ear-lanceolate, 2-5 mm. long; pinnae rather numerous, spread- 

 ing, broadly linear to linear-lanceolate, 1-2 (-2.5) cm. wide, 

 acuminate, nearly truncate at base, sessile, sparsely scaly be- 

 neath glabrous above except on the costas, the lowermost pin- 

 nae ovate-deltoid, obtuse, 1-2 cm. long; pinnules spreading, ob- 

 long to elliptic, 3-5 mm. wide, obtuse to rounded, the lowest 

 slightly longer than the others, the veinlets simple or forked; 

 sori submarginal; indusia usually reniform-orbicular, some- 

 times quadrate to deltoid, 0.2-0.5 mm. across, frequently ob- 

 lique, erose. Mountains; Hokkaido, Honshu, Shikoku, 



Kyushu. Korea (Dagelet Isl.), Kuriles, and Kamchatka. 



Var. yakumontana (Masam.) Tagawa. Dryopteris yal{ti- 

 montana Masam.; Thelypteris quelpaertensis var. ya\umontana 

 (Masam.) Tagawa; Ctenitis quelpaertensis var. yal^umontana 



(Masam.) H. Ito Yakushima-shorima. Fronds smaller, 



6-25 cm. long; pinnules ovate to ovate-oblong. Kyushu 



(Yakushima). 



7. Lastrea subochthodes (Ching) Tagawa. Thely- 

 pteris subochthodes Ching; Dryopteris ochthodes auct. Japon., 

 non C. Chr.; Dryopteris ligulata auct. Japon., non O. Kuntze; 

 L. jalciloba auct. Japon., non Hook. Ibuki-shida. Rhi- 

 zomes creeping, glabrous, thinly scaly while young; fronds 

 deciduous; stipes straw-colored, 20-30 cm. long, usually short- 

 pilose, thinly scaly toward the base or nearly naked; scales 

 ovate, 3-4 mm. long, entire, puberulous; blades oblong-lanceo- 

 late, 30-80 cm. long, 10-30 cm. wide, abruptly acuminate, 

 abrupdy contracted at base, the rachis usually short-pilose; 

 pinnae rather numerous, broadly linear, 1-2 cm. wide, acumi- 

 nate, acute to obtuse at the tip, sessile, regularly pinnatiparted, 

 sparsely short-pilose on both sides and margin, densely so on 

 costas of both sides; pncumatophores subglobose, at the base 

 of pinnae beneath; pinnules narrowly oblong, 2-3 mm. wide, 

 acute, subfalcate, crenate to subentire, the veins pinnate, the 

 veinlets simple; sori submarginal, in 2 rows on the pinnules; 

 indusia orbicular-reniform, entire, slightly incurved on margin, 

 about 0.5 mm. /across. July-Nov. Honshu (s. Kanto Distr. 



and westw.), Shikoku, Kyushu. s. Korea, Ryukyus, For- 

 mosa, China. 



8. Lastrea thelypteris (L.) Bory. Acrostichum thely- 

 pteris L.; Polypodium palustre Salisb.; Polystichum thelypteris 

 (L.) Roth; Aspidium thelypteris (L.) Sw.; Dryopteris thely- 

 pteris (L.) A. Gray; Thelypteris palustris Schott Hime- 



shida. Rhizomes slender, wiry, long-creeping; fronds some- 

 what dimorphic, slender, scattered-pilose, deciduous; stipes 

 erect, slender, 10-50 cm. long, sometimes black-green or 

 purplish red; scales thin, deciduous, sparse, broadly lanceolate 

 to ovate; blades chartaceous-membranous, lanceolate, 30-50 

 cm. long, 5-15 cm. wide, scarcely narrowed at base, vivid 

 green, often somewhat glaucous, the rachis slender, lustrous, 

 usually glabrous; pinnae 10-25 pairs, linear to lanceolate, the 

 fertile 3-10 mm. wide, the sterile 10-15 mm. wide, acute, sub- 

 sessile, pinnatiparted, the veins pinnate, tl'ie veinlets mostiy 

 forked; indusia small, orbicular-reniform, about 0.2 mm. 

 across, ciliate, caducous. Aug.-Oct. Wet meadows; Hon- 

 shu, Shikoku, Korea, China to n. India and Siberia, Eu- 

 rope, Africa, New Zealand, and N. America. 



9. Lastrea glanduligera (Kunze) Moore. Aspidium 

 glanduligerum Kunze; Dryopteris glanduligera (Kunze) 

 Christ; Thelypteris glanduligera (Kunze) Ching; Nephrodium 

 gracilescens var. glanduligerum (Kunze) Hook. & Bak.; 

 Dryopteris gracilescens sensu auct. Japon., non O. Kuntze; D. 



gracilescens var. glanduligera (Kunze) Makino Hashigo- 



SHiDA. Rhizomes slender, long-creeping, thinly scaly; fronds 

 evergreen; stipes slender, lustrous, pale green, thinly short- 

 pilose, brownish, sparsely scaly near base; scales pale brown, 

 lanceolate, 2-3 mm. long; blades narrowly deltoid to broadly 

 lanceolate, 15-45 cm. long, 4-17 cm. wide, acuminate, not nar- 

 rowed at base; pinnae spreading, linear-lanceolate, 2-8 cm. 

 long, 7-15 mm. wide, acuminate, sessile, regularly pinnati- 

 parted, thinly pilose on both sides, densely so on costas above, 

 with yellow sessile glands beneath; pinnules oblong-linear to 

 narrowly oblong, 1.5-2.5 mm. wide, obtuse, subentire, the vein- 

 lets simple, reaching the margin; sori submarginal, in 2 rows; 

 indusia orbicular-reniform or elliptic to flabellate, about 0.5 



mm. across, ciliate. Woods; Honshu (Kanto Distr. and 



westw.), Shikoku, Kyushu. Ryukyus, Formosa, Korea, 



China to India, and Indochina. 



Var. hyalostegia (Copel.) Ohwi. Athyrium hyalostegia 

 Copel.; Thelypteris glanduligera var. hyalostegia (Copel.) H. 

 Ito; Aspidium angustifrons Miq.; T. angustifrons (Miq.) 



Ching; L. miqueliana Tagawa Ko-hashigo-shida. Blades 



smaller, narrowed at base; pinnae smaller, oblong; indusia 

 often long-ciliate and long-pilose, the hairs nearly as long as the 



width of the indusium. Woods; Honshu (Kanto Distr. and 



westw.), Shikoku, Kyushu. Ryukyus, Formosa, China, and 



Philippines. 



10. Lastrea cystopteroides (Eaton) Copel. Athyrium 

 cystopteroides Eaton; Asplenium cystopteroides (Eaton) 

 Hook.; Diyopteris cystopteroides (Eaton) Kodama; Thelyp- 

 teris cystopteroides (Eaton) Ching; D. gracilescens subsp. 

 glanduligera var. abbreviata Kodama; D. abbreviatipinna Ma- 

 kino & Ogata HiME-HASHiGO-SHiDA. Rhizomes long- 

 creeping, slender, usually less than 1 mm. across, thinly scaly; 

 fronds small, delicate, sparsely short-pilose on upper side of 

 stipe, rachis, and costas of the pinnae; stipes nearly filiform, 

 2-10 cm. long, pale green, brownish and thinly scaly at base; 

 scales on stipes and rhizomes lanceolate, about 1 mm. long, 

 brown; blades lanceolate to oblong-ovate, 2-8 cm. long, 12-30 



