94 



ASPLENIACEAE 



low mountains; Hokkaido, Honshu, Shikoku, Kyushu; com- 

 mon. SakhaHn, s. Kuriles, Kamchatka, Ryukyus, Korea, 



Manchuria, and China. 



9. Asplenium coenobiale Hance. A. juscipes Bak.; A. 



toramanum Makino ^Kurogane-shida. Rhizomes short, 



erect, with a tuft of old stipes, the scales chartaceous, broadly 

 linear, 4-5 mm. long, black-brown, entire; fronds tufted, with 

 minute capitate hairlike scales while young; stipes erect, terete, 

 nearly black, lustrous, 3-10 cm. long, 0.2-0.5 mm. across; 

 blades narrowly deltoid, 4-8 cm. long, 1.5-4 cm. wide, long- 

 attenuate, subacute to obtuse at the tip, bipinnate in lower 

 portion, simply pinnate in upper portion, the rachis sulcate on 

 upper side; lower pinnae spreading, firmly herbaceous, nar- 

 rowly oblong-ovate, 8-20 mm. long, 5-8 mm. wide, obtuse, 

 sessile, the upper pinnae obliquely spreading, the lowest 

 anterior pinnules slightly larger than the others; pinnules ob- 

 liquely elliptic to oblong, 3-6 mm. long, 2-4 mm. wide, obtuse, 

 often slightiy imbricate, obmsely few-toothed, slightly de- 

 current; veins and costules slender; sori solitary to few on the 

 upper portion of the pinnules, subcostular; indusia 1-2 mm. 

 long. Calcareous rocks; Shikoku; rare. China and Indo- 

 china. 



10. Asplenium prolongatum Hook. A. achilleifoUum 

 sensu auct. Japon., non Liebm. nee C. Chr.; A. rutae folium 



sensu auct. Japon., non Kunze Hinoki-shida. Rhizomes 



short, ascending, covered with basal remains of old stipes, the 

 scales narrowly lanceolate, 4-5 mm. long, about 1 mm. wide, 

 acuminate, dark brown, with a narrow brown sparsely spined 

 margin; fronds tufted; stipes flattened, sparsely scaly while 

 young, 10-25 cm. long, the scales about 1 mm. long, spread- 

 ing; blades 10-20 cm. long inclusive of the prolonged rachis 

 gemmate at the tip, broadly lanceolate, bipinnate, the rachis 

 green, flattened, with a slender raised midrib on upper side; 

 pinnae 10-18 pairs, ascending, oblique, oblong to ovate, 15-40 

 mm. long, 6-12 mm. wide, obtuse, simply pinnate, petiolulate; 

 pinnules about 5 pairs, herbaceous, ascending, linear, 5-10 mm. 

 long, 1-1.5 mm. wide, obtuse, entire, the lower ones rarely 2 

 parted in vigorous fronds, 1-veined; sori solitary on the pin- 

 nules, linear; indusia 3-7 mm. long. ^Wet shaded rocks in 



mountains; Honshu (Izu and Kii Prov.), Shikoku, Kyushu. 

 s. Korea, Ryukyus, Formosa, China to India. 



11. Asplenium ritoense Hayata. A. davallioides Hook., 

 non Tausch; Humata dareoidea Mett.; A. dareoideum (Mett.) 



Makino, non Desv. Kozaki-shida. Rhizomes short, 



rather stout, ascending; stipes few together, green, flattened, 

 sparsely scaly on the lower half, 7-20 cm. long, the scales 

 linear-lanceolate, 3-6 mm. long, acuminate, spreading, dark 

 brown, remotely few-spined; blades 2- or 3-pinnate, ovate to 

 broadly so, 10-18 cm. long, 4-10 cm. wide, prolonged at the 

 tip to a simply pinnate tail 1-4 cm. long, the rachis green, 

 flat, with a rather broad slightly raised midrib on upper side; 

 pinnae ascending, petiolulate the lower ones bipinnate to bipin- 

 natiparted, larger, ovate-deltoid, 2.5-9 cm. long, 1-4 cm. wide, 

 prolonged and simply pinnate at the tip, the petiolules 3-8 mm. 

 long; pinnules thickly herbaceous, linear-oblong to lanceolate, 

 3-5 mm. long, 1-1.5 mm. wide, subacute to obtuse, the apical 

 mostly arcuately spreading, entire or rarely bifid, green on 

 both sides, slenderly 1-veined; sori solitary on a pinnule; 



indusia 2-3(-4) mm. long. ^Moist shaded places; Honshu 



(s. Kanto through Tokaido to s. Kinki Distr.), Shikoku, 



Kyushu. s. Korea (Quelpaert Isl.), Ryukyus, Formosa, and 



s. China. 



12. Asplenium trigonopterum Kunze. A. mertensi- 



anum Kunze Obano-hinoki-shida. Rhizomes stout, as- 

 cending; fronds 50-100 cm. long; stipes stout, light green, 

 grooved on upper side toward tip, naked on upper portion, 

 with pale brown, lanceolate scales 8-10 mm. long, 1.5-2 mm. 

 wide at base; blades narrowly ovate-oblong, 3- or 4-pinnati- 

 parted, glabrous; pinnae 10-15 pairs, obliquely spreading, 

 12-17 cm. long, 3-6 cm. wide, 2- or 3-pinnate; pinnules firmly 

 herbaceous, ascending, green, slightly paler beneath, the sterile 

 ones narrowly rhombic-ovate, 15-30 mm. long, 6-10 mm. 

 wide, subobtuse, cuneate at base, more or less irregularly ob- 

 tuse-toothed, often parted in lower half, the fertile pinnules 

 finely and pinnately cut, the segments ascending, broadly 

 linear, 5-10 mm. long, 1.5-2 mm. wide, 1-veined, entire, the 

 rachis flattened, green, with a slender raised midrib on upper 

 side; sori solitary on the pinnules or teeth; indusia linear, 3-5 



mm. long. Honshu (Hachijo Isl.); rare. Bonins and 



Formosa. 



13. Asplenium sarelii Hook. A. sauUi Hook, ex Bak.; 



A. bla\istonii Bak. Koba-no-hinoki-shida. Rhizomes 



short, erect to ascending, scaly; stipes pale green, 1.5-10 cm. 

 long, slender, sparsely scaly on lower half while young, the 

 basal scales lanceolate, 2-A mm. long, long-attenuate, fili- 

 form at the tip, diose on upper part of stipe and on blade very 

 sparse, fugacious, hairlike; blades ovate to narrowly so, 5-15 

 cm. long, 2.5-6.5 cm. wide, bipinnate, acute to short-acuminate, 

 not narrowed at base; pinnae spreading, deltoid-lanceolate, 

 1-1.5 cm. wide, acute to short-acuminate, short-petiolulate; 

 pinnules spreading to ascending, ovate to rhombic-ovate, ob- 

 tuse to subacute, cuneate at base, short-petiolulate, cut nearly to 

 the base into a few segments; ultimate pinnules herbaceous, 

 broadly oblanceolate, 3-4 mm. long, 1.5-2.5 mm. wide, cuneate 

 at base, with a few acute teeth and sometimes lobes on upper 

 margin, entire at base; sori few on a pinnule, ascending; 



indusia 1.5-3 mm. long. Honshu (Kanto through Tokaido 



to Kinki Distr. and westw.), Shikoku, Kyushu. Ryukyus, 



Korea, China to the Himalayas. 



Var. pekinense (Hance) C. Chr. A. pe\inense Hance; A. 



sepulchrale Hook.; A. ahbreviatum Makino Tokiwa-tora- 



No-o. Stipes usually about 5 cm. long; blades broadly lan- 

 ceolate, nearly 15-30 mm. wide, acute; pinnae deltoid to 

 broadly ovate, acute to obtuse, subsessile, the pinnules slightiy 

 thicker, slightiy broader, more closely arranged, and less 

 cuneately narrowed at base. Occurs with the typical variety. 



14. Asplenium wilfordii Mett. Tarachia wilfordii 



(Mett.) H. Ito ^AoGANE-SHiDA. Rhizomes ascending to 



short-creeping, clothed with basal remains of old stipes; fronds 

 tufted; stipes firm, pale green to purplish, dull, 2-grooved on 

 upper side, 10-25 cm. long, about 1.5 mm. across, very sparsely 

 scaly in upper part, densely so at base, the scales linear-lanceo- 

 late, 3-6 mm. long, deep brown, gradually narrowed to a long 

 filiform tip, entire; blades oblong-ovate to ovate, 15-35 cm. 

 long, 4-10 cm. wide, acute to short-acuminate, nearly glabrous, 

 3- or 4-pinnatiparted; pinnae 8-10 pairs, obliquely spreading, 

 deltoid-ovate, acuminate, petiolulate; lower pinnules petiolu- 

 late; ultimate pinnules firmly herbaceous, oblanceolate-cuneate, 

 4-7 mm. long, 1.5-2.5 mm. wide, ascending, unlobed or deeply 

 3-fid, usually bidentate at the tip, deep green above, whitish 

 green beneath; veins 1-3 in the segments, nearly parallel, 

 slender, often once forked at the tip; sori 1-3 to a segment; 



indusia linear, 1-3 mm. long, closely parallel. Honshu 



(Izu Prov. through Tokaido to Kinki Distr. and westw.), 

 Shikoku, Kyushu. Ryukyus, Formosa, and s. Korea. 



15. Asplenium pseudowilfordii Tagawa. A. calcicola 



