Sasa Tsuboiana Makino, sp. nov. Rhizome hypogaeous, repent, slender, rooting at nodes. Culm ascending or erect, attaining about 2zn. in height, simple, but in age loosely ramose above, slender, terete, fistulose, smooth, glabrous, green, encircled with culm-sheaths and then bare from them in age, attaining about 52mm. in diameter ; nodes slightly prominent ; internodes attaining about 19cm. in length ; branches solitary to a node, usually encircled with sheaths. Leaves medium-sized, 3-10 to a

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... anch and approximately distichously and submalmately arranged towards the apical end, oblong-lanceolate to narrowly lanceolate, acuminate with a very sharp point, rounded to acute at the base and decurrent to the short flat petiole, which is about 3-10mm. in length, chartaceous or coriaceo-chartaceous, glabrous on both surfaces, green above, paler beneath, spinulososcabrous on margins, 8-2'7cm. long, 24-6cm. broad, sempervirent ; midrib slender, prominent beneath, pale-stramineous ; veins 6-10 on each side, fine ; veinlets minutely and very numerously tessellate between veins ; ligule very short, erect, truncate or rounded-truncate, ciliato-scabrous on margin, thinly coriaceous, puberulent dorsally, about 1-1 mm . long ; sheath narrow, striate, glabrous, viridescent and often shaded with purple, setoso-fimbriato-auricled or merely setoso-fimbriate at the mouth and then naked from the deciduousness of the setae. Nom. Jap. Tsuboi-zasa, Ibuki-zasa.