1903.J 



85 



Observations on the Flora of Japan. 



{^Continued from p. 80.) 



By 



T. Makino, 



Assistant in the Botanical Institute, Science 

 College, Imperial University of Tokyo. 



Viola (Noraimium) Okuboi Makino, nom. nov. 



«. typica. 



Viola Keiskei /9. OJmhoi Makitio in Bot. Mag., Tokyo, XVI. (1902) 

 p. 133. 



Viola Keiskei herb. Sc. CoD. Imp. Univ. Tokyo, non Miq. 



Acaulescent, flaccid, not stoloniferous ; trank thick, attaining 9 mm. in 

 diameter, and 2^ cm. in length, short, erect, or sometimes obliquely erect, 

 inarticulated, the surface rough with small protuberances; vaginte few, 

 trifid, viridescent ; main roots few, elongate, with fine rootlets. Leaves 

 densely ctespitose, erect-patent, petiolate, ovato-reniform or reniform- 

 orbicular, rounded-obtuse, cordate with an open sinus, crenato-serrate, 

 thinly piloso-pubescent, thin, quite green, 1-5 cm. long, 1-4 cm. broad, but 

 attaining 7 cm. long, 6 cm. broad after anthesis ; veins 3-4 on each side, 

 loose ; petiole usually longer or sometimes shorter than the blade, narrowly 

 marginate, thinly piloso-pubescent with patent white hairs, attaining about 

 13 cm. long after anthesis ; stipules adnate one-half below, membranaceous, 

 green, the free portion subulate or subulate-linear, acuminate, erect, dentato- 

 ciliated. Peduncles few to several, higher or lower than the leaves, thinly 

 piloso-pubescent or subglabrous, bracteate at the middle or above or below 

 it, attaining about 10 cm. long in flower, often purplish ; bracts 2, erect, 

 linear, ciliated or subciliated, 7-11 mm. long. Flower about 2 cm. across, 

 white, but darkish- flavescent when 'dried. Sepals lanceolate or oblong- 

 lanceolate, acutish or obtuse, green or purplish-green, trinerved 7-13 mm. 

 long including the basal auricles, often thinly piloso-pubescent externally, 

 often ciliated on the basal margins ; the basal auricles subdeltoid-ovate, 

 irregularly pauci-dentate, often ciliated. Petals obovato-elliptical or obovato- 

 oval or obovato-ablong, rounded at the apex, attenuated below, beardless, 

 13-14 mm. long, the lower one slightly shorter, striped with violet or some- 



