60 



Ruhus coreanus Miq. was introduced long ago, and it is now rarely 

 found growing wild in Tokyo by escape. 



Caltha palustris Linn. var. pygmaea Makino var. nov. 



Roots fasciculate, fibrous, more or less thick towards the base, laxly 

 with short rootlets. Radical leaves tufted, decumbent-spreading, long- 

 petioled, broadly ovate, ovato-reniform, orbicular-reniform, or subsagittato- 

 ovate, with an acute opened sinus and relatively large ovate lobes, de- 

 pressed-crenate but crenato-dentate in the lobes, membranaceous, flaccid, 

 about 18-26 mm. long, 16-22 mm. wide in flower, but attaining about 

 4 cm. in length and in width after anthesis ; veins impressed above, laxly 

 reticulated ; petiole slender, semiterete, with an adnate (but shortly free at 

 its apex) broad transparent membranaceous vagina at tiie base ; cauline 

 leaf shortly petiolate, smaller, the vagina free from the petiole and thinly 

 membranaceous. Peduncle decumbent, subtrigonous, longer than the leaves 

 including the pedicel, and attaining about 12 cm. in length in flower, 

 uniflorous without any cauline leaf, or bi-florous with a cauline leaf, the 

 pedicel slender. Flower yellow, 1.5-17 ram. across, .'5-6-sepaled. Sepals 

 horizontally patent, oblong, obtuse, entire, longitudinally impressed-nervate, 

 greenish dorsally. Stamens numerous, about two-thirds as long as the 

 sepals, erect-patulous, yellow ; filament clavato-filiform ; anther elliptical. 

 Carpels about 7, lanceolate, laterally compressed, attenuated into a very short 

 style above, viridescent ; stigma minute, recurved. 



Hah. Prov. Musashi : Tokyo, cult. {T. Makino ! April and July 1902). 



This is commonly cultivated in Nagoya and its vicinity, prov. Owari. 

 It is yet unknown to me in wild state, but it is said to grow wild in 

 the province of Ise. It is comparable to var, j. minima Regel. 



Viola sylvestris Kitaib. var. japonica (Ging.) Makino. 



Viola canina s. ? japonica Ging. in DC. Prodr. I. p. 298 ; A. Gray 

 in Perry's Exped. Ja{>. p. 308. 



Viola canina Sieb. et Zucc. in Abhandl. Akad. Miinch. IV. 2, p. 169 ; 

 HofFm. et Schult. Nom. ind. pi. Jap. ed. nov. p. 63, non Linn. 



Viola grypoccras A. Gray 1. c. ; Franch. et Sav. Enum. PI. Jap. I. 

 p. 43, et II. p. 289. 



