March 1916. j c. K0ID7.TJ3IT :—COyTRIBTJTIONES AD FLOE AH. 57 



Eriophorum Scheuchzeri Hoppe. Bot-Taschenb. (1800), 104; — 

 Aschers. et Graebn. Syn. Mitteleurop. Fl. II. 2, s. 332 ; — Ostenf. Fl. 

 Arct. I. (1902) p. 41;— Trautv. et Mey. Fl. Ochot. p. 98 ;— Kurtz, in 

 Engl. Bot. Jahrb. XIX. 477. 



Nom. Jap. Yezo-watasuge (nov.) 



Hab. Ycso: Prnv. Ishikari, Mt. Chiubetsudake, Mt. Nutakkamshpe, 

 Mt. Hiragatake, alpine belt. (leg. H. Koidzumi! ang. 1917.) 



Distr. Arctic region. Northern N.-Amcrica, Iceland, Scandinavia, 

 Russia, Central european Mountains, Siberia. 



New to the flora of Japan ! 



Gentiana glauca Pall. Fl. Ross. Tom. I. pars 2, (1788) p. 104, 

 t. 93, fig. 2; — Ledeb. Fl. Ross. III. 66 ; — Trautv. in Act. Hort. Petrop. 

 V. 85 ;— Kurtz, in Engl. Bot. Jahrb. XIX. 398, 470 ;— Koidz. in Tok. 

 Bot. Mag. XXV. 218 ;— Cham, et Schl. in Linn. I. 175 ;— Hook, et 

 Arn. Bot. Beech. Voy. 127 ;— Trautv. in Act. Ilort. Petrop. IX. 480 ; 

 —Gray, Syn. Fl. N.-Am. II. 1, p. 120. 



Nom. Jap. 



Hab. Yeso : Mt. Nntakkamshpe, alpine belt. (leg. G. Koidzumi ! 

 aug. 1916.) 



Distr. Siberia orientalis, Kamtschatka, Tschuktschor, Alaska, 

 Northern Rocky Mountains, Cascade Mts., Hudson regions. 



New to the flora of Japan ! 



Prunus chikusiensis Koidz. nov. sp. 



P. kitisinna Koidz. in Tok. Bot. Mag. XXXII, (1918) p. (54.), 

 (quoad Sp. ex Tanegashima ; excl. Syn.) 



Umbellae peduncnlis brevioribus, bracteis minoribus, foliorum ser- 

 rattiris brevins aristatis. Allinis P. dooarivm Ssp-. spetiosae KOIDZ. 



Nom. Jap. 



Distr. Kiusiu: Prov. Oheurai, insl. Tanegashima (kg. S. Kawagoe!) 



Oxycoccoides japonicus (Miq.) \.\k.\i. in Tok. Bot. Mag. XXXI, 

 (1917) p. 247. 



V actinium faponicam Mio. Ann. Mn t'oi I ngd. Batav. I. 28. 



Calycia lolii I- oblongo-triangulares (sublanceolati) acuti. 



Distr. A^i.-i orientalis. 



i. ciliaris Matsuh, in Sched, Herb, S. i . Coll. Imp. Univ. Tokyo. 



Ramnlis hornotinia Bortun pedicellis petiolisque glanduloso-pnberulis. 



Hab. faponia. 



