188 BOTANICAL MAGAZINE. [Voi. xyli, 



Oa3spitose, green^ estoloniferous ; rhizome short, ascending, densely root- 

 ing. Culm erect, attaining 73 cin. in height, slender, scabrous in the 

 apical portion, very laxly foliate. Leaves rigid, angustato-linear, attaining 

 3 mm. broad, trigonous in the apical portion, obtuse at the apex, scabrous - 

 margined, much shorter than the culm. Corymbs 3-8, more or less 

 compound, fasciculately 6-9-spicul©se ; apical ones fubcontinued, with iloral 

 bracts which are slightly exserted : inferior ones distant and long-pednnc- 

 led, sometimes binate from a vagina ; bracts anguitato-linear, attain- 

 ing 2 mm. wide ; floral bracts very angustate subulato-linear. Spiculfe 

 erect, linear-lanceolate, subulate, acumiDate^ 2-6-dowered, brunneo-rufescent, 

 8-10 mm. long. Empty glumes 3, oblong-ovate ; flowering ones ovato- 

 lanceolate. Seta3 Q-5, finely capillary, delicately retrorsely piloso-scabrous, 

 3-3J times as long as the mature achene. Stamens 3 ; filament as long 

 as setge. Achene oval-obovate, biconvex, transversely rugulose, l|mm. 

 long, ferruginous ; rostrum acuminately conical, scarcely equal to the achene 

 in length, the base slightly abruptly dilated ; style deeply bifid, the branches 

 long, filiform, longer or much so than the main portion. 



Hah. Prov. Iwashiro : Yama-gori {J. Matsumura ! herk Sc. Coll Imp. 

 Univ. Tokyo, Aug. 11, 1879) ; Prov. Mutsu : Kuniyoshi-mura {T. Iwahaioa ! 

 herb. ibid. July 30, 1880), Okitate-mura in Higashi-tsugaru-gori [H. Sahurai t 

 herb. Imp. Househ. Mus. Aug. 1885), Hyakuzawa {H, Sahurail herb. Imp. 

 Househ. Mus. Aug. 1885); Prov. Shinano : Togakushi (H. Sahurail herb. 

 Imp. Househ. Mus. Aug. 6', 1892), Nigori-zawa in Togakushi (Herb. ! Tmp. 

 Househ. Mus. Aug. 10, 1885) : Prov. Mikawa : Takashi-hara (H. Sahirai ! 

 herb. Imp. Househ. Mus. July 1903); Prov. Ise : Mt. Tarusaka in Miye- 

 gori (K. Imai\ June 7, 1903). 



Rynchospora (Dichostylese) Yasudana Maldno, sp. nov. 



(PI. VII. fig. 10.) 



Cfespitose, estoloniferous, attaining 33 cm. in height ; rhizome ascending, 

 covered with scaly leaves. Culm erect, very gracile, setaceo-fihform, slightly 

 scabrous above, laxly foliate. Leaves much shorter than the culm, an- 

 gustato-linear, attaining 2 mm. wide, trigonous and scabrous towards the 

 obtuse apex. Corymb 1 or approximately 2-3-spiculose, lower ones long- 

 peduncled ; peduncle erect ; bracts setaceo-linear, but superior ones setaceous. 

 Spiculfe erect, angustato-lauceolate, or lanceolate, acuminate, 2-3-flowered, 

 5-6 mm. long, ferrugineo-brunneus. Empty glumes 2, ova to-lanceolate ; 

 flowering ones oblong-ovate or ell iptico- ovate. Setfe 6, usually longer than 



