72 



Hah. Isl. Bonin {R. Yatahe and J. Matsumura ! herb. Sc. Coll. Imp. 

 Univ. Tokyo, Dec. 10, 1879 ; Herb. ! Y. Tanaka). 



Viola (Nomimium) Yazawana Makino sp. nov. 



Acanlescent; rhizome erect or ascending, thick, pale, closely articulated, 

 covered with brown old petiole-bases and old stipule-!, rooting throughout, 

 1-1-3 cm. long : roots slender, white, with loose and short rootlets. Leaves 

 few to several, erect, or ascending, deltoid-cordate, acuminate with a 

 mucronato-acute tip, auriculate with an opend deep sinus and ovate or 

 ovato-rounded lobes at the base, depressed-crenato-serrate, membranaceous, 

 clearly green, yellowish-viridescent when dried, not variegated, concolorous, 

 thinly pubescent above, glabrous beneath, with loose veins, 31-7^- cm. long, 

 3-6 cm. broad after anthesis; petiole longer than the blade, slender, 

 exalate, glabrous, attaining 11 cm. long after anthesis, pale-green, but 

 purplish below ; stipules subulato-linear, narrowly attenuated above, adnate 

 at the base, membranaceous, pale, laxly glanduloso-ciliated on the margin, 

 6-8 mm. long. Peduncle about 1 to a stock, very slightly exceeding the 

 leaves in height, gracile, glabrous, pale-green, St^— 7^ cm. long, bracteate 

 above the middle ; bracts 2, approximate, linear, acutish, one-nerved, few- 

 glandular on the basal margin, about 4 mm. long. Flower white, about 

 1^ cm. across. Sepals lanceolate, or broadly lanceolate, acutish, glabrous, 

 green, narrowly hyalino-margined, with 3 main nerves and very loose 

 veinlets, .5-6 mm. long ; basal auricles short and truncate, entire, glabrous. 

 Petals obovato-elliptical, rounded at the apex, but retuse in the lower one, 

 attenuated towards the base, beardless, 10-12 mm. long, .5-6-1 mm. wide ; 

 calcar very short, small, scrotiform, 3 mm. long and broad. Connective- 

 tip rounded-ovate, obtuse, a little shorter than the anther-cells ; appendages 

 thick, curved, shortly lunato-falcate, with an obtuse tip, about 2 mm. long. 

 Ovary conical, acute, glabrous ; style slightly exserted above the anther, 

 clavato-cylindrical, glabrous ; stigma subcordate, with a very short beak. 

 Capsule oblong-elliptical, acutish, longer than the persistent sepals, glabrous, 

 maculate with purple, about 8 mni. long. 



Hah. Prov. Shixano : Mt. Tugakushi (A". BIcdsuol:a\ July 1901; K. 

 Tanakal May 1902). 



A rare species ; it should be grouped with Viola vaglnaia Maxim, 

 and V. Matsumurce Makino, but it is smaller. 



