41 



Hah. Prov. Oshima in Hokkaido: llakudutc {U. Yutabc aud 7v. 

 Miyahel lierb. 8c. Coll. Imp. Univ. Tokyo, Aug. JO, 1878); Prov. Iwaki : 

 Maniwa near Sakamoto in Watari-gori (T. Blahino ! Aug. 17, 1890) ; 

 Prov. Mikawa: Taka«hi-mura {T. BluJdml Oct. 21), 18!J4, Aug. 1899); 

 Prov. Suo: Ochi-mura (D. Nikail Lcrb. 1. c. Aug. 2G, 1892); Prov. 

 MusASHi : Himonya {2\ 3TaJdno\ Aug. 1901). 



This species sparingly dispersed over Japan ; it is remarkaljly [)eculiar 

 by having small numerous tubercules at the base within the vagina of 

 petioles and having no stolon. 



Sagittaria sagittifolia Linn, forma sinensis (Suns) Makiuo. 



Stout, stoloniferous ; stolons long, in its end with a globose tuber which 

 is attaining about 4 cm. or more in diameter. Leaves ample, long-petiolcd, 

 sagittate, broadly ovate, very slightly produced and obtuse at the apex, tho 

 basal lobes usually longer than the terminal lamina, ovate, acuminate with 

 very sharply pointed apex, the sinus close towards tlie bottom and then 

 open forwards ; petiole stout, angulate, vaginate at b ise. Flower some- 

 times appeared ; rachis branching below. 



Sagitiaria sinensis Sims I>ot. Mag. 1814, tab. 1G31 ; Spreng. Syst. 

 Ycg. II. p. 633. 



h'acjiUaria sutjUlijoHa Lour. PI. C'oehinch, p. .')70 (t'd. WilKl. p. 

 G98), ex Sims. 



Sagittaria sagiUij'olia a. cdulis Sieb. Syn. I'l. ()oe(»n. Jap. J830, l'. 

 17 ; Miq. Prol. PI. Jap. p. 70. 



? Sagittaria ohtusa Thunb. PI. Jap. p. 242, cxcl. nom. Linn. 



Nom. Jap. Kmoai. 



Hah. Prov. MusASiii : Mikawazima-mura, cult. {T. JfaJdno ! Sept. 

 27, 1888), Adzusawa near Akabane, cult. {T. MaJdnol Oct. 30, 1898), 

 Tokyo, cult. {T. Makiuo ! Aug. 1901). 



This is commonly cultivated throughout Japan for their edible tubers. 



Sagittaria sagittifolia Ijinn. var. pygmsea (Miq.) JMakino. 



Sagittaria pygma^a Miq. Prol. PI. Jap. p. 70 ; Franch. et Sav. 

 Enum. PI. Jap. II. p. 17. 



Sagittaria sagittifolia ^. oligocarpa IMicheli in DC. ]Mon(igr. Phane- 

 rog. III. p. (S^. 



Hah. Piov. MusAijHi : Tokyo {R. Yotabe and Z. Jlatsu)nura\ Oct. 



