300 



CYPERACEAE 



35. Carex ormatha (Fernald) Mackenzie. 



711. 



Western Stellate Sedge. 



Fig. 



Carex cchinata ormantha Fernald, Proc. Am. Acad. 37: 483. pi. 4, f. 89. 1902. 

 Care.v stellulata onnantha Fernald, Rhodora 4: 222. 1902. 

 Care.v onnantha Mackenzie, Erythea 8: 35. 1922. 



Densely cespitose from ver}- short creeping slender rootstocks, the 

 culms 1.5-4 dm. high, obtusely triangular, slender but rather stiff, 

 smooth. Leaf-blades slightly canaliculate, 1.5-2 mm. wide; head 2-6 

 cm. long, the 3-4 spikes widely separate, the terminal gynaecandrous, 

 long clavate at base, the lateral suborbicular, 6-8 mm. wide. 3-5 mm. 

 long, with 2-12 widely radiating perigynia ; lowest bract more or less 

 developed; scales ovate, obtuse, nearly length of body of perig>'nia, 

 chestnut brown with lighter center and broad shining hyaline margins 

 and apex, not sharply keeled, the midvein obscure at apex ; perigynia 

 plano-convex, lance-ovate, 3.5-4 mm. long, 1.5 mm. wide, soon brownish 

 yellowish, round truncate at base, conspicuously many striate on both 

 faces, the margins scarcely elevated, not serrulate, tapering into a 

 serrulate beak more than half length of body, the dorsal suture in- 

 conspicuous, the ventral prominent, the teeth triangular, short, erect, 

 chestnut-brown ; achenes lenticular ; stigmas 2. 



Boggy places. Transition Zone; north from the San Bernardino range through 

 the Sierra Nevada to northern California and Oregon. Type locality: Strawberry 

 Creek, El Dorado County, California. 



36. Carex phyllomanica W. Boott. 

 Coastal Stellate Sedge. Fig. 712. 



Caie.v phyllomanica W. Boott, in S. Wats. Bot. Calif. 2: 233. 1880. 

 Care.v sterilis W. Boott in S. Wats. Bot. Calif. 2: 236. 1880; not. Willd. 



Densely cespitose from slender creeping rootstocks, the culms 

 2.5-6 dm. high, obtusely triangular (sharply above), smooth or 

 nearly so. Leaf-blades flat. 1.75-2.75 mm. wide; head 1.5-3.5 cm. 

 long, the 3^ spikes approximate, the terminal gynaecandrous, 

 clavate at base, the lateral suborbicular, 7 mm. wide, with 8-15 

 widely spreading perigynia; lowest bract somewhat developed; 

 scales ovate, obtuse, two-thirds length of body of perigynia, chest- 

 nut brown with lighter center and hyaline margins, not sharply 

 keeled, the midvein obscure at apex ; perigynia ovate-lanceolate, 

 plano-convex, 3.75-^.5 mm. long, 1.5 mm. wide, round-truncate at 

 base, conspicuously striate on both faces, the margins scarcely 

 raised, entire, tapering into a serrulate beak scarcely half length 

 of body, the apex hyaline and chestnut tinged, bidentate, the teeth 

 short, erect, the ventral suture conspicuous ; achenes lenticular ; 

 stigmas 2. 



Swampy places near the coast, Canadian Zone; northern California to Alaska. 

 Type locality: Mendocino City, California. 



37. Carex angustior Mackenzie. 



Narrower Sedge. 



Fig. 



713. 



Care.v stellulata angnstata Carey, in A. Gray Man. 544. 1848. 

 Carex echinata angnstata Bailey, Mem. Torrey Club 1 : 59. 1889. 

 Carex angtistior Mackenzie in Rydb. Flora Rocky Mts. 124. 1917. 



Densely cespitose, the culms 1.5-3 dm. high, slender, sharply 

 triangular, roughened above. Leaf-blades flat or canaliculate, 0.75-2 

 mm. wide; spikes 3-5, approximate or little separate forming a 

 head 1-2 cm. long, the terminal gynaecandrous, the lateral pistillate, 

 5-15 flowered, suborbicular or short-oblong, 4-6 mm. long ; lowest 

 bract more or less developed ; scales ovate, short cuspidate, equal- 

 ing body of perigynia, yellowish with sharply defined green mid- 

 vein extending to apex and ill-defined opaque margins ; perigynia 

 lanceolate, plano-convex, 3 mm. long, 1.25 mm. wide, yellowish, 

 fragile, nerveless or obscurely impressed nerved ventrally. more or 

 less nerved dorsally, rounded' at base, the margins slightly raised, 

 not serrulate, tapering into a sparingly serrulate beak more than half 

 length of body, the apex bidentate, reddish brown tipped, the ventral 

 siuure prominent, achenes lenticular ; stigmas 2. 



In boggy places. Transition and Boreal Zones; Newfoundland to North 

 Carolina, west to Washington and the Sierra Nevada of California. Type 

 locality: Fairfield, New York. 



