1903.J OBSEBVATlOm ON THE FLORA^OF JAPAN. 181 



at the base. Leaves several, green, not rigid, very narrowly linear, shorter 

 than the culm, attaining 2 mm. broad, glabrous, minutely scabrous on 

 margins above, trigonous towards the acute apex, the interior ones long- 

 vaginate. Corymbs forming a terminal globose head, 15-17 mm. in diame- 

 ter ; involucral-bracts several, longer than the head, patent or more or less 

 reflexed, unequal, leafy, subulato-linear, scabrous-margined, ciliated and dilated 

 at the base, the longest one about 6 cm. Spicuke numerous, dense, subulato- 

 lanceolate, compressed, 8 mm. long, testaceo-ferruginous, shining, with a female 

 flower below and 1-3 male flowers above. Glumes carinate; empty ones 3-4, 

 mucronato-acute, the lower ones subulato- ovate, the superior larger and 

 elliptical-ovate ; flowering ones : the lower one ovate and longer than the 

 empty ones, the superior ones longer and ova to-lanceolate or lanceolate. 

 Setfe 6, unequal in length, much shorter than the achene, antrorsely scabrous. 

 Stamens 3; filament a httle exceeding the glume; anther linear. Achene 

 orbiculato-obovate to obovate, biconvex, minutely scabro-ciliated on shoulders, 

 thinly spinuloso-scabrous above, fulvo-castaneous, very minutely punctate, 

 sub-thining, li-l| mm, long; rostrum very short, minute, conico-deltoid, 

 suddenly dilated at the base; style long, filiform, undivided. 



Hah, Prov. Buzen : Yazaki-mura in Usa-gori (Harb. ! 8c. Coll. Imp. 

 Univ. Tokyo, Sept.. 1880), Jono-mura (il/. Yam \ Aug-. 13, 1903) ; Prov. 

 Hyuga : Nishigatake-mura {11. Yatahe and J. 31otsumura ! herb. ibid. July 

 22, 1882); Prov. Kii : Arashika {J. Matsumura and S, Okuhol herb. ibid. 

 July 1883); Prov. Tosa : Sakawa {T. Makino\ 1885), Yunoki in Hata-gori 

 {T, Mahino\ Aug. 6, 1889), Godaisan {R. Yatahe I herb. ibid. July 30, 

 1888); Prov. Mu^awa : Takashi {T. Mahinol Aug. 1899); Prov. Higo : 

 Mt. Bosh i in Amakusa {31. MurahHmil Sept. 1899); Prov. Hizen: Hikosan 

 in Nagasaki {N. Okadal herb, ibid. Oct. 27, 1902); Prov. Suo : Ouchi- 

 mura {!), Nikail herb. ibid. Aug. 26, 1892); Prov. Idzumi : Sunagawa 

 {S. Matsuda ! Aug. 3, 1896) ; Loochoo : Isl. Okinawa {S. Tashiro ! herb, 

 ibid.* March 1887). 



In. all the Japanese specimens, which I have examined, the styles are 

 not divided. 



Rynchospora (Haplostylece) corymbosa (Linn.) Britton ; 0. Kuntze 

 Rev. Gen. PI. 111. 2, p. 335. 



Scirpus corymhosus Linn. Amoen. Acad. IV. (1759) p. 303, et Sp. 

 PI. ed. 2, p. 76 ; Eicht. Cod. n. 431 ; Houtt. Nat. Hist. XXXI. p. 116 ; 

 Wilkl. Sp. PI. I. p. 308. 



