THE GENUS CAREX IN CALIFORNIA 



41 



Type Locality: Godthaab, Greenland (J. Vahl). 



Meadows and open woods, Greenland to Alaska, south to Maine, Colorado 

 and northern California, where it is confined to the northern Coast Ranges. 



Loc: Eureka, Tracy 4421, 4G41. 



Reps.: Carex praticola Rydb. Mem. N. Y. Bot. Gard. 1: 84 (1900). C. pratensis Drejer, 

 Revis. Car. Bor. 24 (1841), same type, not Hose 1797; Kiik. in Engler, PBzr. 420 : 198 (1909). 



36. C. Tracyi Mackenzie n. sp. Cespitose, the culms 1.5-6 dm. high, strict, 

 slightly roughened on angles above, exceeding leaves; leaf-blades 2-3 mm. wide, 

 deep green; head stiff, narrow, 18-35 mm. long, the spikes 4-7, aggregated or the 

 lower a little separate, ovoid or short-oblong, 7-10 mm. long, 5-8 mm. wide, obtuse 

 at apex, the perigynia numerous, appressed-ascending; scales ovate, acute, covering 

 perigynia, brownish-red with lighter midvein and hyaline margins; perigynia ovate, 

 4-5 mm. long, 2 mm. wide, membranaceous-winged to the rounded base, serrulate 

 above, strongly nerved dorsally and ventrally, abruptly beaked, the beak obliquely 

 cut dorsally, at length bidentulate, dark reddish-brown at tip, not hyaline at orifice, 

 shorter than body. 



Type Locality: Bald Mt., Humboldt Co., California (Tracy 4547). 



Northern California to British Columbia; in California it is confined to the 



(I 



J0 



northern Coast Ranges 



Loc: Bald Alt., Humboldt Co., Tracy 4547. 



Refs.: Carex Tracyi Mackenzie. "C. leporina L." Piper & Beattie, Fl. Nw. Coast 75 

 (1915). This species, which bears a very strong resemblance to the widely distributed Carex leporina 

 L., differs from that species in the perigynium beak not being bidentate and in being darker colored; 

 also the perigynia are strongly nerved ventrally. It has been collected in considerable abundance 

 north of California. 



37. C. phseocephala Piper. (Fig. 17). In large stools from densely matted 

 rootstocks, the culms 1-3 dm. high, more or less roughened beneath head, exceeding 

 leaves; leaves bunched at the base, the blades more or less involute, 1.5-2 mm. 

 wide; spikes 2-5 (rarely 7), aggregated, 

 6-12 mm. long, 5-8 mm. wide, forming 

 an erect head 12-25 mm. long; lowest 

 bract occasionally developed; scales 

 ovate, acute, dark brownish, with 

 strongly hyaline margins aiTd lighter 

 midvein, covering perigynia; perigynia 

 ascending, oblong-ovate, 4.5 mm. long, 

 1.8 mm. wide, round-tapering at the 

 base, strongly nerved dorsally, obscurely 

 nerved or nerveless ventrally, contracted 

 into a minutely bidentate, serrulate beak 

 about 1 mm. long. 



Type Locality : Oregon (Elihu Hall 

 583). 



Mountain summits, Alberta to Colo- 

 rado and west to California, British Col- 

 umbia and Alaska; in California confined 

 to the higher peaks of the Sierra Nevada 

 from Mt. Whitney to Mt. Shasta. 



Locs.: Denels Peak, Tulare Co., Hall & 

 Babcock 5511; Sawtooth Peak, Tulare Co, Hall 

 & Babcock 5675; Mt. Tallac, Hall & Chandler 



4627; Stanislaus Peak, Alpine Co., .4. L. Grant 536; Kaweah River, Dudley 1258; Mt. Shasta, Copeland 

 3568; Little Kern River, Purpus 5643; Mt. Whitney, Venwn Bailey 2048; Whitney Meadows, Coville 

 & Funston 1661; Mt. Whitney, Jepson 1078. 



.1: J 



Fig. 17. Carex ph.eocephala Piper. 



o, inflorescence, X 1; b, scale, X 8: c, perigynium, 

 X8. 



