70 



obtuse point, but deltoid and cuneato-truncate at the base in the lower ones, 

 pinnatifid into 4-7-lobes, but deeply pinnati-parted into 5-7-lobes in the 

 lower ones, the largest one 7 mm. long, 5 mm. broad ; lobes erect-patent, 

 cuneato-elliptical or cuneato-ovate, shortly attenuated above and with an 

 acutish-obtuse tip, 2-4-crenato-lobulate ; veins impressed above ; rachis capil- 

 lary, quite glabrous, green, but slightly stramineous below. Sori 1-3 to 

 a lobe, intramarginal, rounded, when fully mature occupying the whole 

 under surface of the pinnas and rufo-ferruginous ; indusium pateriform, irre- 

 gularly deep-parted into a few (about 4-5) subovate thin -membranaceous 

 lobes which are concealed under the sori, with long cilia projecting beyond 

 the sorus. Sporangia subnumerous, the case rounded, the pedicel shorter 

 than the case. Spore ovoid, umber, rugulose all over. 



Nom. Ja[). Togakuslii-denda (nov.). 



Hah. Prov. Siiinano : Summit of Mt. Togakushi {K. Yazmoa\ Aug. 

 29, 1904). 



An alpine fern, growing in rocky phice. It resembles Woodsia gla- 

 bella R. Br., but the latter differs by having the thin, membranaceous 

 and very obtuse pinnre and the short, nearly entire lobes. 



Woodsia (Euwoodsia) ilvensis (Linn.) R. Br. in Trans. Linn. Soc. 

 XL (1815) p. 173; Spreng. Syst. Veg. IV. (1827) p. 125; Ledeb. Fl. Alt. 

 lY. p. 330 ; Id. Fl. Bos.«. IV. p. 510 ; Kaulf. Enum. Fil. p. 251 ; Kunze 

 in Linnasa XXIIL p. 297 ; Hook. Fl. Bor.-Am. II. p. 259 ; Id. Sp. Fil. L p. 

 63 ; Id. Brit. Ferns, tab. 8 ; Benth. Handb. Brit. Fl. ed. 5, p. 567 ; A. Gray, 

 Man. Bot. ed. 5, p. 669 ; Eaton in Chai^ra. Fl. S. Un. St. p. 596 ; Met- 

 ten. Fil. Hort. Bot. Lips. p. 98 ; Eaton, Ferns N. Amer. II. p. Ill, tab. 

 60, fig. 5-8 ; Wood, Cl.-Book Bot. p. 822 ; Id. Amer. Bot. et Flor. p. 425 ; 

 Maxim. Prim. Fl. Amur. p. 337 ; Reg. et Til. Fl. Ajan. p. 128 ; Reg. Tent. 

 Fl. Ussur. n. 605 ; Hook, et Baker, Syn. Fil. ed. 2, p. 46 ; Lowe, Ferns Brit, 

 et Exot. VII. p. 67, tab. 28 ; Fr. Schm. Reis. im Amur. u. Ins. Sachal. p. 

 74; Miq. Prol. Fl. Jap. pp. 343, 390 ; Franch. et Sav. Enum. PI. Jap. II. p. 

 204 ; Franch. PI. David. I. p. 346 ; Kawakami, in Bot. Mag., Tokyo, XIV. 

 p. 106 ; Diels in Engler et Prantl, Nat. Pfl.-Fam. L 4, p. 161, fig. 88, D, 

 E; Matsum. Ind. PI. Jap. I. p. 351. 



AcroHtichum ilvense Linn. Sp. PI. p. 1071, et ed. 2, p. 1528 ; Richt. 

 Cod. n. 7787 ; Houtt. Nat. Hist. XXXII. (1783) p. 83, et Linn, Pfl,-Syst. 

 XIIL (1786) p. 93, 



