220 



CYPERACEAE 



38. C. phaeocephala Piper. Spikes 2 to 5 (rarely 7), 6 to 12 mm. long, 

 forming a head 12 to 25 mm. long; lowest bract occasionally developed; scales 

 ovate, acute, dark brownish, covering perigynia ; perigynia 4.5 mm. long, 

 obscurely nerved ventrally, contracted into a beak about 1 mm. long. 



High peaks of the Sierra Nevada from Mt. Whitney to Mt. Shasta. North 

 to Alaska, east to Colorado. 



Locs. Mt. Whitney, Jcpsan, 1078; Stanislaus Peak, A. L. Grant 536; Mt. Tallac, Hall # 

 Chandler 4627; Mt. Shasta, Copeland 3568. 



Eefg. CAREX PHAEOCEPHALA Piper, Contrib. U. S. Nat. Herb. 11:172 (1906), type from 

 Ore., E. Hall; Mackenzie, Erythea 8:41, fig. 17 (1922). 



39. C. leporinella Mackenzie. Spikes 3 to 8, narrowly oblong-oval, 6 to 15 

 mm. long, forming a head 1.5 to 3 cm. long ; lowest bract occasionally somewhat 

 developed; scales ovate, acute, reddish-brown, covering perigynia; perigynia 4 

 mm. long, few-nerved ventrally, tapering into a beak 1 mm. long. 



High summits, central Sierra Nevada, from Mariposa Co. to Placer Co. 

 North to Washington. 



Locs. Tuolumne Soda Sprs., Congdon.; Summit Valley, Placer Co., Pringle. 



Eefs. CAREX LEPORINELLA Mackenzie, BulL Torr. Club 43:605 (1917), type loe. Pyramid 

 Peak, Eldorado Co., Hall # Chandler 4716. C. tenuirostris Bailey, Mem. Torr. Club 1:15 

 (1889), not Olney. 



40. C. davyi Mackenzie. Culms 2.5 to 3.5 dm. high, smooth, slender; leaf- 

 blades 1.5 to 2.5 mm. wide; head about 2.5 cm. long, the spikes oblong-obovoicl, 

 12 to 18 mm. long ; bracts not developed ; scales oblong-ovate, very obtuse, chest- 

 nut; perigynia thin, 7.5 mm. long, striate dorsally and ventrally, narrowly 

 margined to base and serrulate to middle, the sharply bidentate beak not differ- 

 entiated from body. 



High Sierra Nevada from Placer Co. to Tulare Co., 6000 to 10,000 ft. 



Locs. Devils Basin, Eldorado Co., Brainerd; Calaveras Big Trees, Hillel)rand 2322; Mt. 

 Whitney, Dudley 2484. 



Eefs. CAREX DAVYI Mackenzie, Bull. Torr. Club 43:606 (1917), type loe. Truckee River, 

 Placer Co., Davy 3266. C. sicoata W. Boott in Bot. Gal. 2:230 (1880), not Dew. 



41. C. specifica Bailey. Culms 2.5 to 8 dm. high, smooth, stiff; leaf -blades 

 2 to 5 mm. wide; head globose, 1.5 to 4 cm. long, the spikes oblong-ovoid, 6 to 

 9 mm. long; bracts little developed; scales lance-ovate, acute, reddish-brown; 

 perigynia thin, plano-convex, 6 mm. long, several to many-nerved on both faces, 

 narrowly winged to base, serrulate above, tapering into a bidentate beak % 

 length of body. 



Sierra Nevada from Eldorado Co. to Tulare Co. 



Locs. Echo Lake, Eldorado Co., Brainerd 188; Silver Valley, Alpine Co., Brewer 1969; 

 Yosemite, Abrams 5443; Soda Sprs. of the San Joaquin, Congdon; Marble Fork Kaweah River, 

 Dudley 1790. 



Refs. CAREX SPECIFICA Bailey, Mem. Torr. Club 1:21 (1889), type loe. Silver Valley, 

 Alpine Co., Brewer 1969. C. scoparia Schk. var. fulva W. Boott in Bot. Cal. 2:237 (1880), 

 same type, excluding Hillebrand 2317 and Ore. spms. C. arida W. Boott, I.G. not Schw. 

 Torr. C. lanoifructus Mackenzie, Bull. Torr. Club 43:607 (1916), type from Volcano Creek, 

 Tulare Co., Hall $ Chandler 5472. 



42. C. unilateralis Mackenzie. Culms 2 to 9 dm. high, slender, leaf-blades 

 2 to 4 mm. wide ; spikes 5 to 20, ovoid, 5 mm. long, densely aggregated into an 

 ovoid head 1 to 3 cm. long ; lowest 2 or 3 bracts dilated and strongly brownish 

 hyaline margined at base; scales ovate, strongly cuspidate, reddish; perigynia 

 appressed, ovate-lanceolate, thin, 4 to 5 mm. long, wing-margined, serrulate 

 above, tapering into a short flat beak, serrulate nearly to apex. 



Wet meadows and copses, Humboldt Co. North to British Columbia. 

 Ref 3.7 CAREX UNILATERALIS Mackenzie, Erythea 8:43 (1922), type loe. Alton, Humboldt 

 Co., Tracy 3783. C. athrostachya Kiik. in Engler, Pflzr. 4 2fl :193, fig. 32A, B (1909), not Olney. 



43. C. athrostachya Olney. (Fig. 32a-c.) Culms 1 to 9 dm. high, slender; 

 leaf -blades 1.5 to 4 mm. wide; spikes 4 to 20, ovoid, 4 to 10 mm. long, densely 

 aggregated into an ovoid head 1 to 3 cm. long ; lowest 2 or 3 bracts dilated and 



