20 



closely subtended by a very short (2 to 3 lines) and broad white 

 hyaline auricle ; perigynium small, ovate, flat and soft, gradually 

 narrowed into a very short and entire beak, finely puncticulate, 

 very lightly few-nerved or nerveless, much longer and broader 

 than the obtuse and black broadly white-nerved scale. (73a.) 



N. 



Holm.; Clark's ^ 



Ranch and Yosemite Valley, Bolander 6208 and 6212. The 

 specimens at Stockholm, represented by three full sheets, and 

 which I take as the type, differ in no important respect from those 

 collected by Bolander. The leaves are somewhat rougher, and 

 the base of the bract is more prominently auricled. 



J 2%, — Carex usta. 



C, Dongiasii, Boott, var. brimnea, Olney, Bot. King's Rep 



363 (1871) V. s. Hb. Gray.; W. Boott, Bot. Cal. ii. 231 (i88o- 



v. s. Hb. Gray.; Bailey, Coulter's Mari., 393 (1885), Proc. 



Amer. Acad. Arts and Sci. xxii. 138 (1886). , 



Culm slender (one to two feet high) roughish above, mostly 

 longer than the narrow leaves ; spikes five to ten, staminate 

 above, the lower two or three distinct, the remainder aggregated, 

 the whole forming an interrupted narrowly oblong fulvous head 

 two inches or less long ; bracts dilated and scale-like, acuminate, 

 fulvous, shorter than the spike, or the lowest one sometimes long- 

 er; perigynium lance- ovate, narrowly margined, hairy on the 

 angles above, produced into a long and minutely toothed beak ; 

 scales thin, brown, hyaline-margined, obtuse or muticous, longer 



than the perigynium. (242a). Carson City, Nevada, Watson 



1226 ; California, Bolander 4549 and 4550 ; also Bolander 4503, 



teste Olney and W. Boott, and Coulter 805, California, teste 



Olney. This plant bears no immediate relation to C. Doiiglasii, 



Boott, and its reference to that species is so manifestly erroneous 



that I venture the present disposition, although all the specimens 



are immature, C. Donglasti is dioecious, has large and congested 



heads, which are greenish-white in color, smooth perigynia, which 

 are minutely cleft on the back of the beak, and excessively long 

 styles, all of which characters separate it widely from the plant 

 in question. The long styles of C. Dottglasii break off as the 

 plant matures, and this excellent specific character is commonly 



w 



overlooked. C. nsta is evidently allied to C. leiorhyncha^ Meyer. 



/ 2g. — Carex Douglasii, Boott, van ? laxiflora. 



Taller and more slender than the species (18 inches high) ; 



\ 



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