320 



CYPERACEAE 



95. Carex brevipes W. Boott. 

 Short Sedge. Fig. 771. 



Carex bre-ripcs W. Boott; in S. Wats. Bot. Calif. 2: 246. 1880. 



Care.v globosa brevipes, W. Boott, I.e. 485. 1880. 



Carex deflexa boottU Bailey, Mem. Torrey Club 1: 43. 1S89. 



Larcx rossii brevipes Kiikenth. in Engler Pflanzenreich 4-": 452. 1909. 



In dense clumps from short matted rootstocks. the culms 

 from very short to 18 cm. high, slender, roughened above. 

 Leaf-blades 1.5-2.5 mm. wide, roughened towards apex; 

 staminate spike solitary, short-peduncled or sessile, 4-12 mm. 

 long, 2.5 mm. wide, several-many-tlowered ; pistillate spikes 

 3-5, usually 10-20-flowered, the upper 1-2 approximate, sessile 

 to strongly-peduncled, the others basal, long-peduncled ; bract 

 of lowest non-basal pistillate spike leaflet-like, exceeding 

 culm, more or less purplish brown tinged ; perigynia 2.5-3 

 mm. long, the body obscurely triangular, little longer than 

 wide, membranaceous, pubescent. 2-keeled but otherwise 

 nerveless, strongly stipitate, abruptly beaked, the beak 0.25- 

 0.75 mm. long, minutely serrulate, shallowly bidentate; 

 achenes triangular, closely enveloped; style short, jointed 

 with achene ; stigmas 3, long. 



From Washington south in the mountains, especially in the Sierra 



Nevada, to southern California; Transition Zone. Closely related to 



the following species. Type locality: Lake Tahoe to Bear Valley, Cali- 

 fornia. 



96. Carex rossii Boott. 



Ross' Sedge. 



Fig. 772. 



1896. 



Carex rossii Boott, in Hook. Fl. Bor. Am. 2: 222. 1840. 

 Carex deflexa rossii Bailey, Mem. Torrey Clul) 1: 43. 1889. 

 Carex deflexa farwellii Brit, in Brit. & Brown 111. Fl. 1: 334. 

 Carex farwellii Mackenzie, Bull. Torrey Club 37: 244. 1910. 



Densely cespitose from stout rootstocks, the culms wiry, smooth 

 or slightly roughened above, 5-25 cm. high. Leaf-blades 1-2.5 mm. 

 wide, roughened towards apex; staminate spike solitary, sessile 

 or nearly so, usually conspicuous. 3-10 mm. long, 1 mm. wide; 

 pistillate spikes globose to short-oblong, 3-5 mm. long, 3-4 mm. 

 wide, 2-12-flowered, the upper contiguous, the lower basal and long- 

 peduncled ; bract of lowest non-basal pistillate spike leaflet-like, 

 exceeding culm, purplish brown tinged at base ; scales ovate, sharp- 

 pointed; perigynia 3-4.5 mm. long, the body 1.25 mm. wide, nearly 

 globose in cross-section, membranaceous, pubescent. 2-keeled but 

 otherwise nerveless, strongly stipitate, abruptly beaked, the beak 

 0.75-1.5 mm. long, deeply bidentate; achenes triangular, closely en- 

 veloped; style short, jointed with achene; stigmas 3, long. 



Dry soil Canadian Zone; Michigan to Yukon, south in the mountains to 

 Colorado and California (Mariposa County). Type- locality : northwest coast. 



Care.y 



97. Carex brevicaiilis Mackenzie. 

 Short-stemmed Sedge. Fig. 772i. 



brevicaiilis Mackenzie, Bull. Torrey Club 40: 547. 1913. 



Stoloniferous, the culms 5-10 cm. high, slender, very rough pn 

 the angles. Leaf-blades 1.5-3.5 mm. wide, roughened above; stamin- 

 ate spike solitarv, short-peduncled, few-flowered, 6-10 mm. long, 

 1.5-2 mm. wide;' lateral spikes 2-4, 4-6 mm. long and nearly as 

 wide, the upper 1-2 sessile and approximate, the others basal, slender 

 peduncled; bract of lowest non-basal spike squamiform and shorter 

 than culm, reddish-brown tinged and auriculate at base ; scales 

 ovate, acute to short cuspidate, reddish brown with lighter center 

 and hyaline margins; perigynia about 4 mm. long, membranaceous, 

 loosely short pubescent, 2-keeled but otherwise nerveless, stipi- 

 tate, the body globose, 2.25 mm. wide, abruptly contracted into the 

 slender, serrulate, rather shallowly bidentate beak 1 mm. long; 

 achenes triangular, closely enveloped; style short, jointed with 

 achene ; stigmas 3. long. 



Dry soil near the coast. Transition and Canadian Zones; British Columbia 

 south to Santa Cruz County, California. Type locality: Yaquina Bay. Oregon. 



