88 Ooville tTuncns Columbian/us ^ cm Tfndescribed Rush. 



the anthers about as long as the filaments, often a little longer: style 

 conspicuous, about 2 mm. in length: capsule equaling the perianth or 

 a little shorter, cinnamon-colored or sometimes castaneous at the apex, 

 narrowly oblong, acute at the apex, the style usually persistent and its 

 basal portion developed into a distinct beak though not splitting with 

 the dehiscence of the capsule: seed pale brown, oblong, 0.4 to 0.5 mm. 

 in length (the body about 0.3 mm. long), the outer coat with a tendency 

 to be loose, reticulated in about 20 to 26 longitudinal rows, the areolae 

 usually isodiametrical, transversely plurilineolate. 



Type specimen in the United States National Herbarium, collected 

 July 20, 1896, in wet meadows near Pullman, Washington, by A. D. E. 

 Elmer (Xo. 235). 



Jnncus columbicinus differs from typical Californian Jtoicus 

 nevadensis in the paler color of its flowers, comparatively 

 shorter anthers, less well-defined beak of the capsule, and much 

 paler seeds with nearly twice as many rows of areolae, always 

 trans-lineolate. The recently described JWH-UA suksdorfii Ryd- 

 berg* is another plant of the same group, more closely resem 

 bling nevadensis than columbianns. It is distinguishable from 

 the latter by its greater size and robustness, its height commonly 

 60 to 100 cm. and the annual growth of its rootstocks 5 to 10 

 cm., usually larger inflorescence, and almost always dark brown 

 longer perianth 4 to 5 mm. in length, anthers much longer than 

 the filaments (commonly 2 to 3 times as long), and body of the 

 capsule not plainly visible at maturity at the mouth of the 

 perianth, as is usual in columbianus. 



The specimens of Juncus columbianus in the National Her 

 barium are as follows: 



Washington: 



Klickitat County, "springs, Columbia River,' 1 W. K. 

 Suksdorf, August 8, 1881. 



Klickitat County, near Columbus, W. X. Suksdorf, 

 June 10, 1886. 



Douglas County, Egbert Spring, altitude about 1300 

 feet, Sandberg and Leiberg, July 1 and 5, 1893 (Nos. 

 358,388). 



Douglas County, Wilson Creek, Lake and Hull, August 

 6, 1892 (No. 389). 



*Rydberg, Bull.. Torr. Club, 3$; 541, 1899, 



