312 T. Holm — Studies in the Cyperacece. 



row, but flat, scabrous; culms until 60 cm in height, slender, 

 triangular, scabrous, phyllopodic ; spikes five to six, the termi- 

 nal staminate, the lateral pistillate or the uppermost androgy- 

 nous, contiguous, nearly sessile, spreading to almost drooping, 

 from 4 to 8 cm in length, slender, but very dense-flowered 

 except towards the base, subtended by sheathless bracts with 

 very short blades, the lowest barely half as long as the inflor- 

 escence ; scale of staminate flower elliptical oblong, pale reddish- 

 brown with green mid vein; scale of pistillate flower elliptical, 

 a little darker, spreading and somewhat shorter than the perigy- 

 nium; perigynium sessile, elliptical, granular, compressed, 

 prominently two-nerved (the lateral), pale greenish brown, the 

 beak short, emarginate : stigmata two. 



South Dakota ; Rosebud Creek, collected by Mr. E. J. 

 Wallace. 



In general habit much like C. angustata, but we prefer, 

 nevertheless, to place it near C. lenticularis. 



Carex dives sp. n. (figs. 8-9). 



Rhizome wanting, apparently csespitose, lower leaf-sheaths 

 light-brown, not fibrillose; leaves as long as the culm, quite 

 broad and flat, scabrous along the margins ; culms up till 60 cm 

 in height, erect, stiff, triangular, very scabrous, phyllopodic ; 

 spikes from six to seven, the terminal and uppermost one or 

 two lateral staminate, the others pistillate, more or less remote 

 and peduncled, especially the lowest one, nodding, very dense- 

 flowered, from 4 to 10 cm in length, subtended by sheathless, 

 foliaceous bracts of which the lower ones reach high above the 

 inflorescence ; scale of staminate flower linear-oblong, mucron- 

 ate, pale brown with green midvein; scale of pistillate flower 

 (fig. 8) lanceolate oblong, acute, purplish with green midvein, 

 much narrower, but about as long as the perigynium ; perigy- 

 nium (fig. 9) minutely stipitate to sessile, erect, roundish, com- 

 pressed, granular, two-nerved, sparingly denticulate along the 

 upper margins, pale green with scattered purplish spots and 

 streaks, the beak very short, entire ; stigmata two. 



Collected in Oregon by Mr. L. F. Henderson ; in California : 

 "in open swamps with C. titricidata, 12 mile house San Jose 

 R. R." collected by H. E". Bolander, and in Chilliwack Valley, 

 British Columbia, by Mr. James M. Macoun. 



The affinity is with 0. Sitchensis Prescott. 



Carex salina Wahl. 



The statement that "this species does not occur on the 

 western side of this continent"* is a mistake, since it has been 



* Memoirs Torrey Bot. Club, i, 45, 1889. 



