56 



THE GENUS CAREX IN CALIFORNIA 



Dry soil, Michigan to Yukon and British Columbia south to Colorado and 

 California, where it occurs in the northern mountains and extends south in the 

 Sierra Nevada at least as far as Mariposa Co. While this is the most widely dis- 

 tributed and abundant species of the group in the western part of the United States, 

 it has been but sparingly collected in California. 



Locs.: Kneeland Prairie, Humboldt Co., Tracy 2657; Eureka, Humboldt Co., Tracy 2041, 

 2045, 2049; Crescent Lake, Mariposa Co., Congdon; Tuolumne Soda Spgs., Congdon; Sierra Nevada, 

 Kellogg; Cisco, Sierra Nevada, Kellogg; Hat Creek, Shasta Co., Eggleston 7382, 7434, 7435, 7485; 

 Pyramid Peak, El Dorado Co., Hall & Chandler 4749; Stanislaus Forest, Alpine Co., Eggleston 9324, 

 9498. 



Refs.: Carex Rossii Boott, in Hook. Fl. Bor. Am. 2: 222 (1840); Kuk. in Engler, Pflzr. 420 : 

 452 (1909). C. novm-anglim Schw. var. Rossii Bailey, Bot. Gaz. 10: 207 (1885). C. deflexa Hornem. 

 var. Rossii and var. media Bailey, Mem. Torr. Club 1:43 (1889), type from "Montana and Colorado 

 to Oregon." C. deflexa Hornem. var. Farwellii Brit, in Brit. & Br. 111. Fl. 1: 334 (1896), founded on 

 var. media. C. Farwellii Mackenzie, Bull. Torr. Club 37: 244 (1910). 



69. C. brevicaulis Mackenzie. Stoloniferous, the culms 5-10 cm. high, 

 slender, very rough on the angles; leaf-blades 1.5-3.5 mm. wide, roughened above; 

 staminate spike short-peduncled, few-flowered, 6-9 mm. long, 1.5-2 mm. wide; 

 lateral spikes 2-4, 4-6 mm. long and nearly as wide, the upper 1-2 sessile and ap- 

 proximate, the others basal, slender peduncled; scales ovate, acute to short cuspidate, 

 reddish-brown with lighter center and hyaline margins; perigynia about, 4 mm. long, 

 loosely short-pubescent, stipitate, the body globose, 2.25 mm. wide, abruptly con- 

 tracted into the slender, serrulate, rather shallowly bidentate beak 1 mm. long. 



Type Locality: Yaquina Bay, Oregon (Howell 2994). 



Coast from British Columbia south to Monterey Co., California. 



Locs.: Crescent City, Davy & Blasdale; Seal Cove, San Mateo Co., Dudley; Ben Lomond Mt., 

 Santa Cruz Co., Dudley; San Francisco, Kellogg; Monterey, Elmer 4531. 



Rep.: Caeex brevicaulis Mackenzie, Bull. Torr. Club 40: 547 (1913). 



XIX. Digitat.e Fries. Culms slender, leafy at the base. 

 Leaf-blades narrow, the sheaths usually strongly 

 purplish. Terminal spike linear, staminate. Lateral 

 spikes 1-5, approximate or separate or sometimes 

 radical, oblong to linear, 5-20-flowered in few ranks, 

 the peduncles included or exserted. Bracts sheathing, 

 more or less strongly purplish-tinged, subspathaceous, 

 the blade absent to rudimentary. Pistillate scales 

 strongly purplish or reddish-brown tinged. Perigynia 

 membranaceous, appressed, oblong-obovoid, pubes- 

 cent to glabrate, triangular, long-tapering to the 

 stipitate base, abruptly contracted into the minute 

 beak, the orifice entire or nearly so. Achenes tri- 

 angular, closely enveloped. Style short, thickened, 

 jointed with the achene, deciduous. Stigmas 3, early 

 deciduous. 



70. C. concinnoides Mackenzie. (Fig. 27). Strongly 



stoloniferous, the culms 2.5 dm. high or less, smooth, 



slender; leaf -blades light green, 2-4 mm. wide; staminate 



spike nearly sessile, 8-22 mm. long; pistillate spikes 1 or 2, 



approximate, rather closely 5-10-flowered, 5-10 mm. long, 



3 or 4-5 mm. wide, sessile or short-peduncled; scales 



no~ides Mackenzi^e"*" narrowly ovate, hyaline-margined, acute to acuminate; 



perigynia 2.5-3 mm. long, 1.5 mm. wide, loosely pubescent, 



scale x'lTc'perigynVum: tapering to a short stipitate base, the body oblong-elliptic, 



X 8. abruptly contracted into the short entire beak, 0.5 mm. 



