326 



CYPERACEAE 



113. Carex ablata Bailey. 



American Cold-lovino- Sedge. 



Fig-. 789. 



1S71; not All. 



Carcx frigida Olney in Bot. King's Explor. i', 



Carex ablata Bailey, Bot. Gaz. 13: 82. 1888. 



Carex owyhccnsis A. Nelson, Bot. Gaz. 53: 219. 1912. 



Rootstocks somewhat elongated, the cuhns slender, smooth 

 or nearly so, 2.5-6 dm. high, much exceeding leaves, the latter 

 4-9 to a fertile culm, the blades 3-4.5 mm. wide. flat. Spikes 

 ?)-7, the upper clustered and sessile or nearly so, the lower 

 usually widely separate and on slender exserted peduncles, 

 the terminal staminate or with a few perigynia. the lateral 

 pistillate or staminate at apex, linear-oblong or linear-cylindric, 

 8-20 mm. long, 4-7 mm. wide ; bracts shorter than inflores- 

 cence, long-sheathing ; scales ovate, obtuse, strongly exceeded 

 by perigynia, dark reddish brown or brownish black with 

 lighter center and hyaline margins ; perigynia lanceolate, 

 greenish, compressed triangular, 3.5-4 mm. long, about 1.25 

 mm. wide, obscurely nerved, slightly ciliate serrulate, rounded 

 at base, tapering into the minutely bidentate beak scarcely 

 1 mm. long; achenes triangular, jointed with the slender style; 

 stigmas 3. 



Mountain bogs and meadows, Canadian and Hudsonian Zones; Mon- 

 tana and Wyoming to British Colunil)ia and the extreme northern part 

 of California. Type locality: Mount Mark, Vancouver Island. 



114. Carex luzulaefolia \\ . Boott. 

 Luzula-leaved Sedge. Fig. 790. 



Carex luzulaefolia VV. Boott in S. Wats. Bot. Calif. 2; 250 (in 



greater part). 1880. . r • ,, 



Carex luzulaefolia strobilantha Holm, Am. Journ. -Sci. 20: j05. /. Ik. 



Carex pseudo-japouica C. B. Clarke, Kew Bull. Misc. Inf. Add. 



Ser. 8: 81. 1908. 



Culms 6-10 dm. high, the leaves mostly clustered at 

 the base, the blades 5-15 mm. wide, mostly 1-3 dm. long, 

 thick and leathery. Terminal spike staminate, more or 

 less peduncled, usually about 1 cm. long, and with one 

 or two sessile staminate spikes at its base; pistillate 

 spikes 3 or 4, all or only the lower strongly exsert- 

 peduncled, widely separate, the upper often equalling 

 the staminate spikes, linear-oblong, 1.5-2.5 cm. long, 7.5 

 mm. wide, closely-flowered, the 20-50 perigynia ap- 

 pressed; bracts long sheathing, the sheaths enlarged 

 upwards, the blades rudimentarv or short ; scales lanceo- 

 late, sharp-pointed, exceeding perigynia, glabrous, pur- 

 plish black with conspicuous light colored midvein ; peri- 

 gynia 5-7.5 mm. long, 2.5 mm. wide, with oblong ovate 

 strongly flattened body, glabrous or . with a very few 

 ciliae on the margins, strongly purplish black tinged, 

 loosely enveloping achene, rounded at base, abruptly 

 beaked, the beak slender. 1.5-2 mm. long, bidentate; 

 achenes triangular, jointed with slender style; stigmas 3. 



In the .Sierra Nevada of California from Shasta County south 

 to Tulare County; Hudsonian Zone. Type locality: above Ebetts 

 Pass, near lake. x i -, i i 



115. Carex nssuncola Alackenzie. 

 Canyon Sedge. Fig. 791. 



Carex luzulaefolia W. Boott in S. Wats. Bot. Calif. 2: 250 (in part- 

 Carex ablata luzuliforinis Bailey, Bot. Gaz. 25: 272. 1898. 

 Carex fissurieola Mackenzie, Muhlenbergia 5: 53. 1909. 



Culms 5-8 dm. high, the leaves mostly clustered at the base, the 

 blades 3-6 mm. wide, 7-14 cm. long. Terminal spike stammate or 

 often slightly pistillate, sessile or short-peduncled ; lateral spikes 

 4 or 5, the upper contiguous and sessile or short-peduncled, the 

 lower separate and strongly peduncled; bracts long sheathing, the 

 sheaths scarcely enlarged upwards, the blades short or rudimentary; 

 scales ovate, acute to cuspidate, exceeding perigynia, sparsely hairy 

 when young, brown with lighter midrib conspicuous to apex; peri- 

 gynia 5 mm. long, 2 mm. wide, the body narrowly ovate, much 

 flattened, loosely enveloping the achene, sparsely hairy when young, 

 remotely ciliate-serrulate on the margins, contracted into a shallowly 

 bidentate beak; achenes triangular, jointed with the slender style; 

 stigmas 3. 



Mountain meadows, Transition Zone; western Nevada and the central part 

 of the Sierra Nevada of California extending as far south as Tulare County. 

 Type locality: south fork of Humboldt River, Elko County, Nevada. 



1880. 



