SEDGE FAMILY 



321 



98. Carex concinnoides Mackenzie. 

 Northwestern Sedge. Fig. 774. 



Care.v richaidsonii W. Boott, in S. Wats. Bot. Calif. 2: 246. 1880; not R. Br. 

 Carex concinnoides Mackenzie, Bull. Torrey Club 33: 440. 1906. 



Strongly stoloniferous, the culms smooth, slender. 2.5 dm. higli 

 or less. Leaf-blades light green. 2-4 mm. wide; staminate spike 

 solitary, nearly sessile, 8-22 mm. long; pistillate spikes one or two, 

 approxiinate, rather closely 5-10-flowered, 5-10 mm. long, 4-5 mm. 

 wide, sessile, or short-peduncled ; bracts short-sheathing, more or less 

 purplish tinged, the blades rudimentary ; scales narrowly ovate, 

 narrower and shorter than the perigynia, hyaline-margined, acute 

 to acuminate ; perigynia 2.5-3 mm. long, 1.5 .min. wide, membran- 

 aceous, appressed. loosely pubescent, tapering to a short substipitate 

 base, the body oblong-elliptic, triangular, abruptly contracted into 

 the short entire beak, 0.5 mm. long; achenes triangular, 2 mm. long, 

 closely enveloped; style short, thickened, jointed with achene ; 

 stigmas 3, early deciduous. 



• Dry soil, Canadian Zone; British Columbia to Mendocino County, California, 

 east to Alberta and Montana. Type locality: Columbia Falls, ^lontana. 



99. Carex triquetra Boott. 

 Triangular-fruited Sedge. Fig. 775. 



Carex triquetra Boott, Trans. Linn. Soc. 20: 126. 1846. 

 Carex monticola Dewey, Bot. Jlex. Bound. 229. 1858. 



Cespitose, the culms 3-6 dm. high, sharply triangular, stiffish, 

 smooth or nearly so, leafy towards base. Leaf-blades rigid, light 

 green, 2.5-6 mm. wide, the sheaths cinnamon-brown tinged and 

 purplish spotted ventrally ; staminate spike solitary, 1-3 cm. long, 

 short-peduncled; lateral spikes three or four, pistillate, or stami- 

 nate at apex, erect, the upper little exsert-peduncled, approxi- 

 mate and often exceeding the staminate spike, the lower 1 or 2 

 often widely separate and long exsert-peduncled, 1^.5 cm. long, 

 4-7 mm. wide, the 5-30 perigynia ascending, closely arranged in 

 few rows ; bracts long-sheathing, the lowest feaflet-like ; scales 

 ovate, short-cuspidate, brownish copper colored with broad 3- 

 nerved center and hyaline margins; perigynia broadly obovoid, 

 4-4.5 mm. long, 2.75 mm. wide, softly short pubescent, light 

 green, membranaceous, sharply triangular, several-nerved, short 

 tapering at base, very abruptly beaked, the beak 0.3 mm. long, 

 bidentate; achenes triangular; stigmas 3. 



Dry hillsides below 2000 feet altitude. Lower and Upper Sonoran Zones; 

 southwestern California from .Santa Barbara County south and e.xtending 

 into the northern part of Lower California. Type locality: California, prob- 

 ably near Santa Barbara (Suttall). 



100. Carex salinaeformis :\Iackenzie. 

 Deceiving Sedge. Fig. 776. 



Carex salina minor W. Boott. in S. Wats. Bot. Calif. 2: 242. 1880; not 



Boott. 

 Carex salinaeformis Mackenzie, Bull. Torrey Club 36: 477. 1909. 



From long-creeping, slender rootstocks, the culms 5-15 cm. 

 high, phyllopodic, smooth, bluntlv triangular, not reddened or 

 fibrillose at base. Leaf-blades 2-3 mm. wide; staminate spike 

 solitarv. more or less peduncled, 8-12 mm. long, 2.5 mni. wide; 

 pistillate spikes 3 or 4, erect, the upper approximate, short-pe- 

 duncled, the lower widelv separate, long-peduncled, 6-12 mm. 

 long, 3-4 mm. wide, with 8-15 appressed-ascending perigynia; 

 scales reddish brown, olituse or cuspidate; perigynia oblong- 

 ovoid, straw-colored, flattened sub-orbicular in cross-section, 2.o- 

 3.75 mm. long, 1.75 mm. wide, nerved, glabrous, rounded at base, 

 and beakless but short-tapering and slightly constricted at apex ; 

 achenes lenticular, apiculate, closely enveloped; style slender, 

 short, jointed with achene; stigmas 2. 



Only known from near the coast in Mendocino County, California, Humid 

 Transition Zone. Type locality: Mendocino City. 



