72 



ASPIDIACEAE 



11 A. Blades evergreen, slightly lustrous above; stipes remote. 



12A. Hairs rather copious; pinnae linear-lanceolate, regularly pinnatiparted, usually about 2 cm. long. 



9. L. glanduligera 



12B. Hairs scanty; pinnae ovate to ovate-deltoid, 5-15 mm. long 10. L. cystopteroides 



IIB. Blades deciduous, scarcely lustrous; stipes nearly tufted. 



13A. Blades deltoid-ovate to oblong, not narrowed at base ILL. japonica 



13B. Blades lanceolate, narrovi'ed at base. 



14A. Costas white-villous beneath, at least in lower half 12. L. nipponica 



14B. Costas pubescent beneath 13. L. beddomei 



9B. Veinlets not reaching the margin of the segments. 



15 A. Pinnae with short-spreading hairs on costas beneath 14. L. laxa 



15B. Pinnae with very scanty minute spreading hairs on costas beneath 15. L. gracilescens 



8B. Blades 3- or 4-pinnatiparted ; lowest pinnae petiolulate. 



16A. Pinnules densely short-hairy beneath, especially on the costas 16. L. hattorii 



16B. Pinnules with long scattered hairs beneath 17. L. oUgophlebia 



1. Lastrea pozoi (Lag.) Ohwi. Hemionitis pozoi Lag.; O. Kuntze; Thelypteris decursivepinnata (Van Hall) Ching 



Leptogramma pozoi (Lag.) Heywood; Thelypteris pozoi Gejigeji-shida. Rhizomes short, erect to ascending; 



(Lag.) Morton; Stenogramma pozoi (Lag.) Iwatsuki; Poly- fronds pilose, deciduous; stipes tufted, 5-25 cm. long, sparsely 



podium ajricanum Desv.; P. tottum Willd., non Thunb.; scaly, thinly whitish spreading-pilose, pale stravi'-colored; 



Gymnogramma totta Schltdl.; Leptogramma totta (Schltdl.) scales spreading, pale brown, linear, 2-4 mm. long, slightly 



J. Smith; Dryopteris africana (Desv.) C. Chr.; Lastrea broadened at base, long-ciliate; blades lanceolate, 15-50 cm. 



africana (Desv.) Ching; Lastrea mollissima (Fisch.) Oku- long, 2.5-15 cm. wide, long-acuminate, gradually narrowed at 



yama; Gymnogramma mollissima Fisch.; Leptogramma mollis- base, more or less whitish pilose on both sides and on margin, 



sima (Fisch.) Ching; Leptogramma amabilis Tagawa densely so above on rachis and on costas, the rachis beneath 



Mizo-sHiDA. Rhizomes elongate; fronds short-pilose, decidu- with spreading ciliate scales; pinnae broadly linear to deltoid- 

 ous, sparsely scaly; stipes 20-40 cm. long, straw-colored, lanceolate, 5-13 mm. wide, acute to acuminate, coarsely obtuse- 

 brownish at base, densely pilose; scales brown, ovate to broadly toothed, more often pinna tely lobed, sessile, broadly adnate to 

 lanceolate, 6-8 mm. long, 1-3 mm. wide, ciliolate, puberulous the rachis, auriculate; sori orbicular; indusia minute, long- 

 outside; blades membranous, oblong-lanceolate, 30-45 cm. pilose. ^Walls and rocks in lowlands and low mountains; 



long, 12-22 cm. wide, acuminate, not or slightly narrowed at Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; corn- 

 base, densely white spreading-pilose; pinnae 10-15 pairs, linear- mon. Korea, Ryukyus, Formosa, China to Indochina, and 



lanceolate, 15-30 cm. wide, acuminate, sessile, pinnately parted India. 



to cleft, the lobes oblong, obtuse to rounded, subentire to ere- 4. Lastrea bukoensis (Tagawa) H. Ito. Dryopteris 



nate, 4-6 mm. wide, the veins pinnate, the veinlets usually bu\oensis Tagawa; Thelypteris bu\oensis (Tagawa) Ching; 



simple; sori linear; indusia absent. Lowlands and hills; Phegopteris bu\oensis (Tagawa) Tagawa ^Tachi-hime- 



Honshu, Shikoku, Kyushu; common. Korea, Ryukyus, waeabi. Rhizomes long-creeping, very sparsely scaly, gla- 



Formosa, China, Malaysia, India to Europe and Africa. brous or thinly pilose; fronds sparsely stellate-pilose; stipes 



2. Lastrea phegopteris (L.) Bory. Polypodium phegop- straw-colored, 20-30 cm. long, 3-3.5 mm. wide, sparsely scaly, 

 teris L.; Gymnocarpium phegopteris (L.) Newm.; Phegopteris sometimes glabrate; scales membranous, broadly lanceolate, 3-5 

 polypodioides Fee; P. vulgaris Mett.; Dryopteris phegopteris mm. long, 1-2.5 mm. wide, acuminate, scarcely lustrous, gla- 



(L.) C. Chr.; Thelypteris phegopteris (L.) Sloss. Miyama- brous, brown; blades membranous, broadly lanceolate, 40-60 



wARABi. Rhizomes slender, long-creeping, short-pilose, cm. long, 12-20 cm. wide, acuminate, slightly narrowed at base, 

 sparsely scaly; fronds slender, deciduous; stipes slender, 10-30 bipinnatiparted; pinnae horizontally spreading, lanceolate, 2-4 

 cm. long, straw-colored, sparsely pilose to nearly glabrous, cm. wide, subopposite, acuminate, sessile, the lowest smallest, 

 sparsely scaly; scales thinly membranous, lanceolate to linear- ovate-deltoid, 2-3 cm. wide; pinnules broadly lanceolate to 

 lanceolate, 2-4 mm. long, 0.5-1.5 mm. wide, long-attenuate; oblong-ovate, 4-6 mm. wide, obtuse to acute, lobulate to 

 blades thinly herbaceous, deltoid, 10-18 cm. long, nearly as coarsely crenate, broadly adnate at base, more or less auriculate 

 wide, acuminate, vivid green, sparsely pilose on both sides, and winged on the rachis, pilose especially on the costas of 

 prominently so on the costas and upper side of rachis, the both sides; sori in 2 rows on the pinnules, nearer the costules 

 rachis sparsely scaly beneath; pinnae lanceolate, 1-2.5 cm. than the margin, orbicular-elliptic; indusia absent. July- 

 wide, acuminate, sessile, pinnatiparted, adnate to the rachis and Sept. Honshu (Hida, Etchu Prov. and northeastw.) ; rare, 

 auriculate, except the two lowest pinnae which are sessile and 5. Lastrea omeiensis (Bak.) Copel. Polypodium omei- 

 not adnate on the rachis; pinnules oblong, 3-6 mm. wide, ense Bak.; Nephrodium omeiense (Bak.) Diels; Dryopteris 

 rounded at apex, coarsely crenate to subentire, the veins pin- omeiensis (Bak.) C. Chr.; Leptogramma omeiensis (Bak.) Ta- 

 nate, the veinlets simple or forked; sori submarginal, in 2 series gawa; Thelypteris omeiensis (Bak.) Ching; Cyclogramma 



on the segments, orbicular; indusia absent. Coniferous omeiensis (Bak.) Tagawa; Glaphyropteris omeiensis (Bak.) 



woods; Hokkaido, Honshu (Kinki Distr. and eastw.), Shi- 'H.llb\ Dryopteris izuensis'K.oii.3.tn3.;D.pseudoajricana'M.3.]d'a.o 



koku, Kyushu; common northw. Korea, China, Formosa, & Ogata; Leptogramma izuensis (Kodama) H. Ito ^Mizo- 



Himalayas, Siberia to Asia Minor and Europe, and N. America. shida-modoki. Rhizomes creeping, scaly, thinly pilose; 



3. Lastrea decursivepinnata (Van Hall) J. Smith, fronds thinly pilose; stipes slender, wiry, 20-45 cm. long, straw- 

 Polypodium decursivepinnatum Van Hall; Aspidium decur- brown, sparsely scaly toward base; scales broadly lanceolate, 

 sivepinnatum (Van Hall) Kunze; Phegopteris decursivepin- 1-2 mm. wide, dull brown, often thinly pilosulous on one side; 

 nata (Van Hall) Fee; Dryopteris decursivepinnata (Van Hall) blades broadly lanceolate to oblong-ovate, 20-50 cm. long. 



