{318) NEW OR LITTLE KNOWN PLANTS OF JAPAN. 



No. 13. 



Viola deltoidea, nov. sp. 



Nom. jap. Tachi-surnire. ^ ^ :f. X u. 



Rootstock short. Stem smooth, more than a foot high. Cauline leaves 

 erect, smooth, oblong-deltoid or lanceolate -deltoid, acuminate, truncate or some- 

 what cordate at the base, entire or minutely and remotely serrate, i-J — 2| inches 

 long, 6 — 10 lines broad; petioles winged above, i — 2 inches long. Stipules 

 free, herbaceous, linear, acute, entire or with a few teeth, i — i^ inches long, 

 I — 2 lines broad. Peduncles axillary, slender, shorter than or equal to the 

 leaves, bracteate above the middle, bracts subulate, ij lines long. Flovv^ers 

 small, 3 lines long. Sepals lanceolate, acute, about 2 lines long; the appendages 

 at the base short, obtuse. Petals oblong, white with purple streaks, 3 lines 

 long, the lateral ones beardless; spur very short. Stigma capitate — Fl. 

 June. 



Specimens of this plant were collected by Mr. S. Ikeno on June 24, 18S8, 

 at a marshy place known as Toda-no-hara near Tokyo. 



As I have only two specimens, one with a few flowers and the other 

 without any, I cannot minutely examine the characters of the flower. This 

 species is related to V. T/ildaiidzeri ofFr^nchet ^nd Savait'iei','^ but these authors 

 state that the leaves of the latter are attenuated into short >vinged petioles and 



*Franchet et Savatier, Enum. Plant. Jap., vol. ii., p. 290. 



