26 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
In a meadow, San Bernardino Valley, 1,000 ft. alt., April 18, 
1900; 4600 Parish. 
Plate XXI. Type specimen, photographed by Mr. W. G. 
Wright. Plate XX*Sa> Perigynium, inner face. b. Exterior 
face of the same. ec. Seale. 
26. Carex densa, Bailey, Mem. Torr. Club, 1:50. C. panicu- 
lata, W. Boott in Wats. Bot. Cal, 2:232. C. Brongniartii densa, 
Bailey, Proc. Am. Acad. 22 :137. 
Culms slender, scabridous above, 5-8 dm. tall; leaves 3-5 mm. 
wide; much shorter than the culms; spikes few in a dense ovoid 
or globulose head, 2-5 em. long, 1-2 em. thick; seales about 
equalling the perigynia, castaneous with prominent green mid- 
vein, narrow, the accuminate apex rough; perigynia ovoid- 
acuminate, strongly nerved on both sides, serrate above on the 
sharp margins, 3 mm. long, prolonged into a narrow beak; 
achenes conformed to the body of the perigynium. 
Cuyamaca Mts., July 12, 1875; 389 Palmer. This specimen, 
the type in part, was referred by W. Boott, in the Botany of 
California, 2:232, to C. foetida, the C. vernaculata of Bailey, 
Bull. Torr. Club, 20:417. The species extends throughout the 
Sierra Nevada to northern California, the above station being 
its southern limit. 
27. Carex nervina, Bailey, Bot. Gaz. 10 :203, t. 3, f. 6-8; Proce. 
Am. Acad. 22 :184. 
Culms slender, shehtly roughened above, 4-5 dm. tall; leaves 
nearly smooth, 2 mm. wide, mostly very short; spikes 6-10, in 
an ovoid or globulose head, 1-1.5 em. long; scales shorter than 
the perigynia, brownish, oval, obtuse or acutish; perigynia 
brownish, lanceolate, spongiose at the obtuse base, 4 mm. long, 
eradually narrowed to a long, rough beak; achenes olivaceous, 
2 mm. long, not filling the perigynia, which thus appear thick- 
mareined. 
At high altitudes in the San Bernardino Mts. High Creek, 
9,500 ft. alt., July, 1904; 6403 Geo. B. Grant. Cienega between 
Bear Valley and Bluff Lake, 7,000 ft. alt., Aug., 1902; 2656 
Abrams. The type was collected at Summit Camp, in the cen- 
tral Sierra Nevada, in 1870, by Kellogg. 
*k** Spikes light brown, discontiguous, or at the apex clustered, in a short 
narrow head; rhizomes creeping, scaly and brown. 
28. Carex Hookeriana, Olney, Silliman’s Jour. Ser. I, 29 :248, 
f. 75. Bailey, Mem. Torr. Club, 1:14. ©. muricata gracilis, 
Boott, Ill. 193. W. Boott in Wats. Bot. Cal. 2:236, Bailey, Proc. 
Am. Acad. 22:140. Jepson, Fl. W. Mid. Cal. 92. 
Culms slender, erect, seabrid, 3-5 dm. tall; leaves flat, 2-3 mm. 
wide, tapering to a fine point, equalling or exceeding the culms; 
spikes 3-5, narrowly ovoid to ellipsoidal, 3-5 mm. long; lower 
