1903. J 



OBSERVATIONS ON THE FLORA OF JAPAN. 45 



conspicuous ; veins iiexuous, pinnate ; venules erect-patent, loose, simple or 

 the lower ones furcate or pauci-pinnate. Sori small, 1-many to each 

 pinnula, often confluent when fully matured, elevated, dorsal on the upper 

 portion of venules, oblong but the lower ones reniform or obliquely 

 hippocrepiform ; indusium very thinly membranaceous, entire-margined. 

 Sporangia obovato-oval, the pedicel equal to or shorter than the case ; 

 spore elliptical, alato-rugose. 



Hah. Japan, widely distributed, found growing on mountains and 

 wooded hills. 



This is allied to Athijrimn Filix-fo&mina Roth, but is evidently distinct 

 from it. 



Fimbristylis (Trichelostylis) ' tonensis Makino in Bot. Mag., Tokyo, 

 IX. (1895) p. 260. 



Annual, glabrous, densely caespitose, 12-25 cm. high. Roots fibrous, 

 fusco-castaneous. Stems slender, glabrous, much compressed, with smooth 

 edges. Leaves basal, few to each stem, angustato-linear,* acuminate, 

 sheathing at the base, shorter than the stem, 3-18 cm, long, 1-2-1 mm. 

 broad, 1 or 3-nerved, with closed venules, the margin thickish and smooth 

 excepting the upper which is very finely scabrous\ Cyme compound- 

 umbellate, lJ-6 cm. across, with many spiculse ; radii and pedicels unequal 

 in length ; the interior spicula of the umbel sessile. Involucral bracts few, 

 unequal in length, angustato-linear, acuminate, finely scabro-spinulose on 

 the margin, the outermost one largest and slightly longer or shorter than 

 the cyme ; bracteoles short, subulato-linear, aristato-acuminate, scarious on 

 both sides of the midrib. Spicule oblong, or oblong-subcyhndrical, comosely 

 covered with numerous patent ferruginous style-branches, 4-6 mm. long. 

 Rachilla straight, glabrous. Glumes numerous, imbricated, angustato- 

 oblong, navicular, aristato-acuminate, (ijntire, scarious, pale-ferruginous, 

 2- nearly 3mm. long; carina sub-3-nerved, viridescent. Stamen 1, lower 

 than the style and nearly equal to the glume in height ; filament filiform, 

 glabrous ; anther small, linear, | mm. long. Style manifest, overtoping 

 the glume, rather stout, dilated at the base, deeply 3-fid into 3 branches, 

 persistent ; branches long, aristiform, patent, arcuate, ferruginose, papillose- 

 hairy, longer than the main portion. Carj^opsis oblong-cylindrical, 

 straight, pale, smooth but delicately trabeculate under nficroscope, 1 mm. 

 long. 



Hah, Prov. Musaspii : Koiwa-mura, sandy place on the side of River 



