ASPIDIACEAE 



53 



Nakai Joshu-kogane-shida. Pinnae glabrescent, horizon- 

 tally spreading. Honshu (centx. distr.). 



5. Woodsia ilvensis (L.) R. Br. Acrostichtim ilvense 



L.; W. hyperborea var. rufidula W. Koch Miyama-iwa- 



DENDA, Rishiri-denda. Rhizomes erect or ascending, densely 

 scaly; fronds tufted; stipes red-brown, slighdy lustrous, 3-10 

 cm. long, jointed below the middle nearly to the base, loosely 

 hairy and thiny scaly, the basal scales membranous, ovate- 

 lanceolate, acuminate, loosely ciliate; blades herbaceous, lanceo- 

 late to oblong-lanceolate, 5-15 cm. long, 1.5-5 cm. wide, acute 

 with an obtuse tip, bipinnate to bipinnatiparted, hairy on both 

 sides, with narrow scales beneath; pinnae 5-15 pairs, obliquely 

 spreading, narrowly triangular-ovate, 1-3 cm. long, 5-10 mm. 

 wide, sessile; pinnules oblong to elliptic, obtuse, obtusely 

 toothed to subentire, decurrent; sori rusty-brown; indusia 

 small, salverform, irregularly parted into 5 or 6 narrow seg- 

 ments. Rocky places; Hokkaido. Sakhalin, Korea, Man- 

 churia, Kamchatka, Siberia to Europe, and N. America. 



6. Woodsia subcordata Turcz. W. eriosora Christ; W. 



\itadakensis Ohwi Kitadake-denda. Rhizomes short, 



erect; fronds tufted; stipes 3-6 cm. long, red-brown, with an 

 oblique joint above the middle, loosely hairy and scaly, the 

 scales pale red-brown, membranous, loosely ciliate, the lower 

 ones ovate, the upper ones linear-lanceolate; blades lanceo- 

 late to broadly linear, 5-12 cm. long, 1-2 cm. wide, acute to 

 subobtuse, gradually narrowed at base, pinnate; pinnae 15-20 

 pairs, spreading, herbaceous, narrowly deltoid-ovate to broadly 

 lanceolate, 5-10 mm. long, 3-5 mm. wide, obtuse, truncate to 

 broadly cuneate at base, sessile, pinnately lobed to parted, 

 loosely hairy on both sides, loosely scaly beneath, the median 

 ones larger; pinnules elliptic to oblong, endre or crenately den- 

 tate; sori submarginal; indusia salverform, wath 4 or 5 finely 



laciniate lobes. Alpine slopes; Honshu (centr. distr.); rare. 



Korea, Manchuria, Amur, and Ussuri. 



7. Woodsia hancockii Bak. W. tsurugisanensis Ma- 

 kino; W. graciUirna C. Chr. Kenzan-denda. Rhizomes 



short, erect or ascending, scaly; fronds glabrous, die stipes 

 tufted, slender, 1.5-3 cm. long, straw-colored, brownish at 

 base, jointed below the middle, scaly near the base, the scales 

 brown, membranous, ovate to ovate-lanceolate, minutely 

 toothed; blades 5-12 cm. long, 1-1.5 cm. wide, acuminate, pin- 

 nate to bipinnatiparted, slightly narrowed at base, the rachis 

 greenish, smooth, glabrous; lower pinnae ovate-deltoid, sessile, 

 the median larger, ovate -deltoid to narrowly ovate, 5-12 mm. 

 long, 5-6 mm. wide, subacute, obliquely cuneate to subtrun- 

 cate at base, short-petiolulate; pinnules few, obtuse to acute, 

 sparsely crenate to lobulate; sori 1-3 on a pinnule; indusia 



small, salverform, with 5 or 6 irregularly fimbriate lobes. 



Shikoku (Mount Tsurugi in Awa Prov.) ; rare. n. Korea, 



Manchuria, and China. 



8. Woodsia glabella R. Br. W. yazawae Makino 



ToGAKusHi-DENDA, Karafuto-iwa-denda. Rhizomes short, 

 erect to ascending; fronds glabrous; stipes tufted, slender, 

 jointed slightly above the base, 1-2.5 cm. long, sparsely scaly 

 near base, the scales pale brown, membranous, elliptic to ovate, 

 acuminate, entire; blades thinly herbaceous, narrowly lanceo- 

 late, 3-7 cm. long, 6-12 mm. wide, acute to acuminate, 

 slightly narrowed at base, smooth; pinnae sessile, spreading, 

 ovate-orbicular in the lower ones, ovate-triangular to rhombic- 

 ovate in median and upper ones, 3-6 mm. long, 3-5 mm. wide, 

 obtuse to acute, broadly cuneate to nearly truncate at base, 

 sessile, pinnatiparted, rarely simply dentate; pinnules elliptic 

 to obovate, obtuse, with few obtuse teeth; sori small, 1-3 on a 

 segment, yellow-brown; indusia small, salverform, finely dis- 

 sected into hairlike segments. Hokkaido, Honshu (centr. 



mountains) ; rare. Sakhalin, Kamchatka, Korea, China, 



Manchuria, Siberia to northern N. America. 



4. ACROPHORUS Presl Taiwan-hime-waraei Zoku 



Terrestrial; rhizomes short-ascending or erect, dictyostelic, with broad dark brown scales; fronds clustered; stipes elongate, 

 scabrous; blades deltoid-ovate, 4-pinnate, the nodes of rachis enlarged; ultimate pinnules small, herbaceous; veins free, with 

 jointed hairs or linear scales on upper surface; sori dorsal on the pinnules, terminal or dorsal on the veins, the receptacle 

 rounded, slighdy raised; indusia reniform, entire, erose, or short-fimbriate, attached at the sinus on the basal side of the sorus; 

 paraphyses absent. Few species, in Malaysia, India, e. Asia to Polynesia. 



1. Acrophorus stipeUatus Moore. A. nodosus sensu 



auct. Japon., non Presl Tahvan-hime-warabi. Rhizomes 



short-creeping; fronds large, 1-2 m. long; stipes straw-colored, 

 stout, lustrous, sparsely scaly in upper part, densely so in 

 lower part, the scales brown, ovate to lanceolate, 8-15 mm. 

 long, tardily deciduous and leaving a small scar on the stipe; 

 blades thinly herbaceous, large, deltoid-ovate, acuminate, 4-pin- 

 nate, the rachis and its divisions smooth, often somewhat chest- 

 nut-brown, brown-pilose on nodes above; pinnae and pinnules 



sessile, spreading, acuminate, the lowest pinnae large, the pos- 

 terior side broader than the anterior; ultimate pinnules nar- 

 rowly ovate, 6-10 mm. long, obtuse, pinnately parted to lobed, 

 with fleshy red-brown hairs on costas and costules, glabrous 

 beneath; lobes and pinnules obtuse, entire, I-veined, cuneate 

 and decurrent at base; sori subterminal on die veins, dorsal, 

 rounded; indusia small, suborbicular, erose, 0.2-0.3 mm. long. 

 Kyushu (Yakushima); rare. Formosa, China to India. 



5. HYPODEMATIUM Kunze Kinmo-warabi Zoku 



Rhizomes short-creeping, densely clothed with large membranous scales; fronds with spreading hairs and sometimes with 

 minute capitate glands; stipes inflated and with many elongate scales at base; blades deltoid-ovate, 3- or 4-pinnatiparted, white- 

 setose; veins free; sori dorsal on the veins, the receptacle prominent; indusia vaulted, setose, reniform, usually asymmetrical, 

 sometimes athyrioid or obsolete. Few species, Africa to Malaysia and e. Asia. Often on calcareous rocks. 



lA. Stipes glabrous at base, the scales 2.5-4 cm. long; fronds without glandular hairs; ultimate pinnules not overlapping; veins scarcely 

 impressed on upper side \. H. jaiiriei 



IB. Stipes pilose at the base, the scales 1-1.5 cm. long; fronds with short glandular hairs; ultimate pinnules usually more or less over- 

 lapping; veins strongly impressed on upper side 2. H. glandtilosopilosum 



