March wis.] t. MAKN TO.— OBSERVATIONS ONTHE FLORA OF JAPAN. 57 



29, 1896 ; Prov. ISE : Yasudzuca (Mitsujiro Kawasaki! Aug. 

 1899), Minamiyama in Kambe (H. Nakaxishiki ! Aug. 1901). 



Scleria mikawana Makixo, sp. no/. 



(Subgen. Eu-Scleria, Sect. Tessellatse.) 



Annual, often tall, about 4-J-llf clecim. high, glabrous ; 

 roots fibrous, densely tufted, substout-filiform, with fine short 

 rootlets, dark-purple. Stems numerous, densely caispitose, 

 leafy throughout, erect, slender, strict, firm, glabrous, triquetrous 

 with smooth edges, finely striate on faces when dry, 1-1 mm. 

 across ; internodes elongate except the base ; nodes sometimes 

 hardly contracted. Leaves distantly alternate, linear, gradual- 

 ly attenuated above with an obtuse or acutish tip at the apex, 

 entire with smooth margins, but often subscabrous towards 

 the apex, subplicate, thickly membranaceous, attaining about 

 3 decim. long and 7 mm. wide ; midrib slender, carinate dorsal- 

 ly ; veins 2 on each side, one median and one intramarginal 

 (near the margin); veinlets several between veins, but few in 

 smaller leaves, close ; sheath triquetrous with smooth edges, 

 wingless, attaining about 7^ cm. long, but shorter in those of 

 the inferior and superior leaves ; mouth semiorbicular or deltoid- 

 semiorbicular and attaining about 2 mm. long, but depressed- 

 semiorbicular or truncate in the superior, thickish and ciliated 

 on margin. Panicles not large, 1^—4 cm. long, oval to oblong 

 in outline, erect or erect-patent, arising through the stem except 

 the lower portion, terminal and axillary, remotely placed, shortly 

 peduncled often accompanied by the sessile fascicle and pedicellate 

 fascicle at the base, rather loosely and alternately disposed 

 with 2—5 fascicles ; rachis often fiexuous, triquetro-compressed, 

 glabrous, smooth-edged; bracts erect-patent, mostly longer than 

 the fascicles, stiff, linear-subulate, setaceo-triquetrous and sub- 

 scabrous-edged towards the apex, carinate dorsally, veins few 

 on each side, the lowest the largest but the uppermost one 

 about equal to the fascicle in height. Fascicles in the axil of 

 bracts, alternate, with about 5-10 (the innermost one often 

 rudimental) spikelets, the lowest one sometimes compound ; 

 2nd rachis very short ; bracteoles several, scarioso-membrana- 



