May J912.J J'. MAK INO.-OBSERVATIONS ON THE FLORA OF JAPAN. 153 



Merely a form with the white flower ; it is met with occa- 

 sionally. 



Viola (Nomimium) dissecta Ledeb. Fl. Alt. I. (1829), p. 

 255, et Fl. Ross. I. (1842), p. 244 ; Maxim. Prim. Fl. Amur, 

 p. 47. 



Viola pinnata /5. dissecta Turcz. Fl. Baic.-Dah, I. p. 178 ; 

 Kegel, PI. Radcl. I. p. 222 ; Maxim, in Mel. Biol. IX. p. 717, 

 Fl. Tangut. p. 79, et Enum. Alongol. p. 79; Franch. PI. David. 

 I. p. 41. 



This species is, I think, distinct from Viola pinnata Linn. 

 The mode of the dissection of the leaves of this species rather 

 resembles those of V. pedata Linn, than those of V. pinnata Linn. 



var. chaerophylloides (Kegel) Makino. 



subvar. a. typica Makino. 



Viola pinnata o. chaerophylloides Kegel, PI. Kadd. I. (1861), 

 p. 222. 



Root elongate, white. Leaves long-petiolate, pedately 

 trisected with distinct petiolules ; those in the flowering time 

 many-dissected into angustate lacinee; those in fruit much larger 

 and much longer petiolate, segments lanceolate to broadly 

 ovate, acuminate at the apex, all decurrent-cuneate at the base, 

 laciniate and dentate, lacing lanceolate or angustately lanceo- 

 late, acuminate. Flower white, but marked with violet veiny 

 lines towards the base in the lower petal, sometimes shaded 

 with purple in the back of the upper petals, odoriferous, 

 about 1^—2 cm. across, lower than or exserted upon the 

 leaves ; scape viridescent and usually shaded with purple, bi- 

 bracteate below the middle. Sepals lanceolate or ovato- 

 lanceolate, often obtuse at the apex, green. Petals obovate 

 or obovato-oval ; spur oblong or narrowly oblong. 



Nom. Jap. Nanzan-sumire. 



Hab. Prov. Tosa: Mt. Kuromori {R. Yatabel herb. Sc. Coll. 

 Imp. Univ. Tokyo, Aug. 3, 1888); Prov. Higo : Mt. Aso (T. Ma- 

 kinol Aug. v30, 1907), Nanataki-mura {Kisahuro Miyake \ Aug. 

 15, 19U6); Prov. Bunco: Mt. Uba-dake (,T. Makino I Awg. 1911). 



