I 



1803.] OBSERVATIONS ON THE FLORA OF JAPAN. 147 



Lepigoyium salinum Kindb. 



Lepigonum leiospermuon Kindb. 



Spergularia media Pers. Syn. PI. I. p. .504, a, Jieterosperma Fenzl 

 in Ledeb. Fl. Koss. II. p. 168 ; Maxim. Ind. Pekin. in Prim. FL Amur, 

 p. 472, et in Mel. Biol. IX. p. 54; Francb. PI. David. I. p. .54; Forbes 

 et Hemsl. ia Journ. Linn. See. XXIII. p. 71. 



Hab. Prov. Kitami in Hokkaido: Isl. Kishiri {T. Makmol Aug. 1903). 



New to the Flora of Japan. It grows among littoral rocks of the 

 island. 



Polygonum (Persicaria) Hydropiper Linn. Sp. PL p. 361 ; Willd. 

 Sp. PI II. p. 444, et Enum. PI. Hort. Berol. p. 428 ; Pers. Syn. PI. I. p. 

 440 ; Spreng. Syst. Yeg. II. p. 258 ; Meisn. Monogr. Polygon, p. 76, et in 

 DC. Prodr. XIV. p. 109; Engl. Bot. tab. 989; Ait. Hort. Kew. ed. 2, 

 II. p. 418; Reichb. FL Germ. Excurs. p. 571; Koch Syn. Fl. Germ, 

 et Helv. ed. 3, p. 535 ; Ledeb. Fl. Alt. IL p. 84, et Fl. Ross. III. p. 

 523 ; Hook. Fl. Bor-Amer. II. p. 132 ; Fr. Schm. in Maxim. Prim. Fl. 

 Amur. p. 230, et Reis. im Amur. u. Ins. Sachal. p. 59 ; Regei Tent. FL 

 Ussur. n. 416 ; Hance in Aon. Sc. Nat. 5 Ser. V. p. 240 ; Benth. FL 

 Hongk. p. 288, et Handb. Brit. FL ed. 5, p. 387; A.. Gray Man. Bot. ed. 

 5, p. 416 ; Franch. et Sav. Eiium. PL Jap. I. p. 396 ; Franch. PL David. 

 I. p. 254 ; Hook. fil. FL Brit. Ind. Y. p. 39 ; Herd, in Act. Hort. Petrop. 

 XL p. 224 ; Korsh. in Act. Hort. Petrop. XII. p. 382 ; Forbes et Hems]. 

 in Journ. Linn. Soc. XXYI. p. 341 ; 0. Kuntze Rev. Gen. PL IL p. 599 ; 

 Henry List PL Formos. p. 76 ; Pahb. Consp. FL Kor. II. p. 34 ; Diels in 

 Engler's Bot. Jahrb. XXIX. p. 312, 



a. vulgare Meisn. in DO. Prodr. XIY. p. 109, et in Miq. Ann. Mus. 

 Bot. Lugd.-Bat. II. p. 58. 



Hah. Japan, common. 



Sometimes this has the subaquatic habit in Japan. 



forma purpuras cens Makino. 



Leaves purpurascent, other as in the type. 



Hab. Prov. Sagami : Hakone, side of Lake Ashi {T. Mahino ! Sept. 

 24, 1886) ; Prov. Tosa : Sakawa, cult. {T, MaJzino ! Oct. 1, 1887). 



/9. Isetevirens Makino in Bot. Mag., Tokyo, X. (1896) p. 64. 



Folygomim jiaccidum var. Icetevirens Makino 1. c. YI. (1892) pp. 49, 

 129. 



