20 



their petals is nsed for dj'eing in the manufacture of a kind of blue paper, 

 called BosM-gami, or Ai-cjami, wliich is a famous product of Yamada-Village, 

 Kurimoto-gori, prov. Omi. 



Aspidium laserpitiifolium Mett. in Ann. Mus. hot. Ludg.-Bat. I. 

 p. 227 ; tab. 6, fig. Ill ; Miq. Pro!. Fl. Jap. p. 340 ; Hook, ct Baker Syn. 

 Fil. p. 254; Franch. et Sav. Enum. PI. Jap. II. p. 233; Christ Die Frank, 

 der Brde, p. 240. 



Rhizome creeping, stout. Stipes distant, shorter than the frond, 

 slender, hard, scaly towards the base, fulvous-straralneons when dried ; scales 

 subulate-lanceolate, or often dilated at the base, narrowly acuminate, entire, 

 membranceous, fulvous-brown, veins very delicate forming copious minute 

 vortical areolas. Frond light green even when dried, ovate, ovate-deltoid, or 

 ovato-lanceolate, acuminate, tripinnatifid or subtripinnate but bipinnatifid 

 above, 35-55 cm. long, 20-33 cm. broad, flaccidly chartaceous, naked above, 

 but very thinly and minutely scaly beneath ; main rachis slender, thinly scaly, 

 stramineous ; pinnae laxly and alternately arranged, patulous or erect-patent, 

 about 5 on each side, the lowest one largest, and 8-12 cm. in width, deltoid- 

 lanceolete, but narrowly lanceolate in the superior ones, acuminate, petiolate, 

 the rachis slender, thinly scattered with acuminate linear-subulate small 

 scales ; pinnules often laxly arranged, alternate, patulous or erect-patent, 

 shortly pedicellate in the inferior ones, but sessile in the superior ones, ob- 

 long-lanceolate or ovate-lanceolate, shortly acuminate in the inferior ones, but 

 acute in the superior ones, obliquely cuneate at the base, the lower largest 

 ones attaining about 9 cm. long, the middle ones about 3| cm. or less 

 long, deeply pinnatifid into oblong or ovate segments, the lower ones often 

 cut down to the rachis ; segments very spinulosely serrulate, but the inferior 

 ones margined with lobules, which are also spinulosely pauci-serrulate, obtuse 

 or acute with a spinulose tip at the apex, the largest one about 2^ cm. 

 long, 11 mm. wide, the costa slightly arcuate outwards ; veins free, ascending, 

 the lower ones pinnate, the upper ones forked or simple. Sori more 

 or less loosely arranged, terminating the veinlet, 1-12 to a segment, placed 

 between the costa and margin ; indusiura orbicular-reniform, membranaceous, 

 entire-margined ; sporangia long-pedicellate. 



Polystichum laserpitiifolium Diels in Engl, et Prantl Die Natiirl. 

 Pflanzenfam. I. 4, p. 193. 



Nom. Jap. 3Iidori-hanaivarahi. 



Hah. Prov. Tosa : Mt. Honokawa (F. Yoshinagal Oct. 2, 1887). 



