MiYABE AND Kudo: Materials fob a Flora op Hokkaido II. 41 



heads hemispherical, 8-13 mm in diameter, 6-10-flowered ; peduncles variable in 

 length, 1-5 cm long, smooth, terete, silicate, straight, erect. Lower bract leaf- 

 like, usually shorter than the inflorescence, lanceolate, acuminate, many nerved, 

 2-3 (-5) cm long; the others all hypsophyllous, ovate, light chestnut-colored, 

 membranaceous, 5-nerved, with long arista 7 mm in length at the apex ; floral 

 bracts membranaceous, obovate, mucronate, light chestnut-colored, one-nerved at 

 the middle, 3.5 mm long. Flowers 5.5 mm long, short-pedicelled ; pedicels 2.5 

 mm long. Perianth-segments glumaceous, the inner ones slightly longer than the 

 outer ; the inner ones oblong, 4 mm in length, roimded at the apex ; tliickened 

 middle portion dark chestnut-colored on the ventral sm'face, gi-een and scabrous 

 on the dorsal ; marginal portion broad, membranaceous, chestnut-colored : the outer 

 ones 3.5 mm long, elliptical, acute at the apex, with other characters similar to 

 those of the inner ones. Stamens 6, of about half the length of the inner peri- 

 anth-segments ; filaments linear, somewhat darkened, with one prominent darker 

 colored nerve in the center ; anthers linear, white, a little longer than or nearly 

 as long as the filaments. Ovary trigono-ovate, distinctly 3-celled ; styles short ; 

 stigmas longer. Fruits when fully matured much longer than the perianth, 

 trigono-ovate, obtusate, 3-celled. Seeds of middle size, 0.5-0.7 mm long. 



NOM. JAP. Sekishb-i, Yezo-no-mikurizeJcisJio. 



Hab. Hokhaido. Prov. Osliima : Hakodate (Faiuie n. 110, July 3, 1885 ; n. 

 4511, Aug. 17, 1889).— Prov. Iburi : Tomakomai (Faurie n. 1804, July 6, 1898; 

 M. Majima ! ^> July 22, 1906).— Prov. Hidaka : Shoya (Tokubuchi ! Aug. 7, 1892). 

 Sara (Faurie n. 13402, July 14, 1893).— Prov. Tokachi : Mt. Tokachi (Faiu-ie n. 

 7208, July, 1905).— Prov. Kushiro : Shakubetsu (Nakammva ! July 22, 1888) ; 

 Lake Harutoro (Miyabe ! July 23, 1894). — Prov. Nemuro : Tomoshiri (Miyabe ! 

 Aug. 23, 1894); Otsuishi (Miyabe! Aug. 6, 1884). 



Kuriles. Etorofu : Moyoro (T. Kawakami !-> Aug. 12, 1898); Shibetoro 

 (Kawakami! Aug. 9, 1898). 



DiSTKiB. Pacific coast of Hokkaido and Kurile Islands and also on the 

 Pacific coast of North America. 



In our country, the present species is limited in distribution to the eastern 

 provinces of Hokkaido and Kurile Islands. We have quite a large number of 

 the specimens of this species at hand, a careful examination of which leads us 

 to consider it as a good species. It is intermediate in general characters between 

 J. obtusatus a.nd falcatus. It resembles J. oUusatus in the characters of the exert- 



1) aiifc^ 2) )\\±MM 



