SEDGE FAMILY 227 



69. C. brevipes W. Boott. In dense clumps from stout matted rootstocks, 

 tlie culms from very short to 18 cm. high; leaf-blades 1.5 to 2.5 mm. wide; 

 staminate spike sliort-peduncled or sessile, 4 to 12 mm. long ; pistillate spikes 

 3 to 5, usually 10 to 20-fliowered, the upper 1 or 2 approximate, sessile to strongly 

 peduneled ; scales ovate ; perigynia with bodj' little longer than wide. 



Montane, 4000 to 7000 ft. : Sierra Nevada from Placer Co. to Tulare Co. ; San 

 Gabriel Mts. North to Washiugton. 



Locs4. — Summit, Placer Co., HeUcr 98.53; Tuolumne Mclws., Ware 2721c; Yosemite, Cong- 

 don; Graut Park, Dudley 1905; Kaweali Peaks, Dudley 2446; Cucamonga Peak, Johnston 1496. 



Eefs. — C.VREX BREVIPES W. Boott in Bot. Cal. 2:246 (1880), type loc. Lake Tahoe to Bear 

 Valley, Kellogg. C. glohosa Boott var. brevipes W. Boott, I.e. 485. C. dcflexa Hornem. var. 

 hoottii Bailey, Mem. Torr. Club 1:43 (1889), same type. C. rossii Boott var. brevipes Kiik. 

 ill Engler, Pflzr. 4=":452 (1909). 



70. C. rossii Boott. Densely cespitose ; culms wiry, 5 to 25 cm. high ; leaf- 

 blades 1 to 2.5 mm. wide ; staminate spike usually conspicuous. 3 to 10 mm. long ; 

 pistillate spikes globose to short-oblong, 3 to 5 mm. long, 2 to r2-£lowered, the 

 upper contiguous ; scales ovate, sharp-pointed ; perigynia nearly globose in cross 

 section. 



Sierra Nevada from Mariposa Co. to Shasta Co., thence west to Humboldt Co. 

 North to Alaska, east to Michigan. The most widely distributed and abundant 

 species of the group in the western part of the United States, but sparingly 

 collected with us. 



Locs. — Sierra Nevada : Ci-escent Lake, Mariposa Co., Congdun ; Tuolumne Soda Sprs., Cong- 

 don; Stanislaus Forest, Alpine Co., Egglestor 9324; Pyramid Peak, Hall 4' Chandler 4749; 

 Hat. Greek, Shasta Co., Egglestmi 7382. Humboldt Co.: Eureka, Tracy, 2041. 



Eefs. — C.\REx Rossn Boott in Hook. Fl. Bor. Am. 2:222 C1840), type loe. nw. coast of 

 N. Am., Douglas; Kiik. in Engler, Pflzr. 4'"':452, fig. 74E-H (1909). C. novae-angliae Schw. 

 var. rossii Bailey, Bot. Gaz. 10:207 (1885). 



71. C. brevicaulis Mackenzie. Stoloniferous, the culms 5 to 10 em. high, 

 veiy rough ; leaf-blades 1.5 to 3.5 mm. wide ; staminate spike short-peduncled, 

 few-flowered, 6 to 9 mm. long; lateral spikes 2 to 4, 4 to 6 mm. long, the upper 

 1 or 2 sessile and approximate; scales ovate, acute to .short-cuspidate; perigynia 

 about 4 mm. long, the body globose, 2.25 mm. wide, the beak 1 mm. long. 



Along the coast from I\Ionterey Co. to Del Norte Co. North to British 

 Columbia. 



Locs. — Monterey, Elmer 4531; Ben Lomond Mt., Santa Cruz Co., Dudley; Seal Cove, San 

 Mateo Co., Dudley; San Francisco, Kellogg; Crescent City, Davy 4' Blasdale. 



Ref. — Cahex brevicaulis Mackenzie, Bull. Torr. Club 40:547 (1913), tvpe loc. Yaquina 

 Bay, Ore., Hou-ell 2994. 



Sect. 19. Digitatae Fries. Culms slender, leafy at base. Leaf-blades narrow, the sheaths 

 usually strongly purplish. Terminal spike linear, staminate. Lateral spikes 1 to 5, 

 approximate or separate or sometimes basal, oblong to linear, 5- to 20-flowered in few 

 ranks, the peduncles included or cxserted. Bracts sheathing, more or less strongly purplish- 

 tinged, subspathac^ous, the blade absent to rudimentary. Pistillate scales strongly purplish 

 or reddish-brown tinged. Perigynia meml)rauaceous, appressed, oblongobovoid, pubescent 

 to glabrat**, triangular, long-tapering to the stipitate base, abruptly contracted into the 

 minute beak, the orifice entire or nearly so. Achenes triangular, closel.y enveloped. Stigmas 

 3, early deciduous. 



72. C. concinnoides Mackenzie. Strongly stoloniferous, the culms 1.5 to 

 3.5 dm. high, smooth; leaf-blades light green, 2 to 4 mm. wide; staminate spike 

 nearly sessile, 8 to 22 mm. long; pi.stillate spikes 1 or 2, approximate, rather 

 closely 5 to 10-flowered, sessile or short-pediincled ; scales narrowl.y ovate, sharp- 

 pointed, ciliate; perigynia 2.5 to 3 mm. long, loosely pubescent, the beak 0.5 mm. 

 long, wider and longer than the scales. 



Dry soil, Mendocino Co. North to British Columbia, east to Montana. 



Loc. — Red Mt., nw. Mendocino Co., Bolander 6478 (in part). 



Refs. — Carex concinnoides Mackenzie, Bull. Torr. Club 33:440 (1906), type loc. Columbia 

 Falls, Mont., li. S. Williams; Erythca 8:56, fig. 27 (1922). C. richardsonii W. Boott in Bot. 

 Cal. 2:246 (1880), not R. Br. 



