322 



CYPERACEAE 



101. Carex hassei Bailey. 

 Hasse's Sedge. Fig. Ill . 



Carex aurca cclsa Bailey, Mem. Torrey Club 1: 75. 1889. 

 Care.v hassei Bailey, Bot. Gaz. 21: 5. 1896. 



Carex celsa Piper, in Piper & Beattie Flora Northwest Coast 79. 

 1915; not Boott, 1862. 



Rootstocks very slender, whitish, elongated, the culms 

 1.5-6 dm. high, phyllopodic, sharply triangular, usually 

 much roughened above, light brownish at base. Leaf- 

 blades 2-4 mm. wide; staminate spike solitary, more or less 

 peduncled, 6-12 mm. long, 2-i mm. wide, often pistillate 

 at apex ; pistillate spikes usually 3-5, the upper approxi- 

 mate and short-peduncled, the lower long-peduncled, 

 linear-oblong. 8-20 mm. long, 3.5 mm. wide, with 6-20 

 ascending perigynia ; bracts sheathing, the lowest ex- 

 ceeding the culm ; scales ovate, acute, reddish-brown 

 tinged; perigynia obovoid-ellipsoid, suborbicular in cross 

 section, nerved, glabrous, at first straw-colored, soon white 

 pulverulent, 2.5-3 mm. long, 2 mm. wide, substipitate or 

 tapering at base, rounded or slightly pointed ; achenes 

 lenticular, apiculate, closely enveloped ; style slender, short, 

 jointed with achene, somewhat persistent and becoming 

 short-exserted ; stigmas 2. 



River banks and wet rocks, Transition and Boreal Zones; Labra- 

 dor to Yukon, south to Maine, Pennsylvania, Alberta, and in the 

 mountains to southern California. Type locality: San Antonio 

 Canon, San Bernardino Mountains. 



102. Carex aiirea Nutt. 



Golden-fruited Sedge. 



Fig. 



778. 



Carex anrea Nutt. Gen. N. Am. PI. 2: 205. 1818. 



Carex mutica R. Br. in Richardson App. Narr. Franklin Voy. 35. 1823. 



Carex pyrifonnis Schw. ; Dewey, Am. Journ. Sci. 9: 69. 1825. 



Rootstocks slender, whitish, elongated, the culms 0.3-4 dm. 

 high, phyllopodic, smooth or somewhat roughened, triangular, 

 light brownish at base. Leaf-blades 2^ mm. wide; staminate 

 spike solitary, sessile or short-peduncled, 3-10 mm. long, 1.5-3 

 mm. wide ; pistillate spikes 3 to 5, the upper approximate and 

 short-peduncled, the lower from little to strongly separate and 

 often strongly peduncled, 4-20 mm. long. 3-5 mm. wide, with 

 4-20 ascending perigynia ; bracts sheathing, exceeding culm : 

 scales ovate, obtusish to short cuspidate, reddish brown tinged ; 

 perigynia broadly obovoid, brownish or at maturity golden yel- 

 low, nerved, glabrous, broadly oval in cross-section, 2-3 mm. 

 long, 1.5-2 mm. wide, tapering at base, umbonate and beakless ; 

 achenes lenticular, apiculate, closely enveloped; style slender, 

 short, jointed with achene, not exserted or persistent; stigmas 2. 



Wet places, Canadian and Hudsonian Zones; Newfoundland to Yukon, 

 south to Connecticut, Michigan, and, in the mountains, to New Mexico and 

 southern California. Type locality: shores of Lake Michigan. 



103. Carex livida OVahl.) Willd. 



Livid Sedge. 



Fig. 



779. 



Carex liinosa livida Wahl. Vet. Akad. Handl. Stockholm 24: 162. 



1803. 

 Carex livida Willd. Sp. PI. 4: 285. 1805. 

 Carex grayana Dewey, Am. Journ. Sci. 25: 141. 1834. 



Rootstocks very slender, elongated, the culms 1.5-5 

 dm. high, smooth, light brownish at base, phyllopodic. 

 Leaf-blades glaucous green, more or less involute, 2 

 mm. wide or less; staminate spike solitary, short- 

 peduncled, 1.5-2.5 cm. long; pistillate spikes one or 

 two, approximate, erect, sessile or short-peduncled, 1-2 

 cm. long, 5 mm. wide, closely 5-15-flowered ; bracts 

 often exceeding culm, the sheaths short; scales ovate, 

 chestnut or copper tinged with more or less hyaline 

 margins; perigynia 3.75 mm. long, 1.75 mm. wide, mem- 

 branaceous, the body ellipsoid, obscurely triangular in 

 cross-section, slightly inflated, glaucous green, faintly 

 nerved, narrowed and pointed but not beaked at apex, 

 tapering at base, exceeding the scales; achenes tri- 

 angular ; style slender ; stigmas 3. 



Sphagnum bogs. Boreal Zone; I.abrador to Alaska, south to 

 New Jersey, Michigan, and northern California. In our range 

 very local, being known only from Mendocino County, California. 

 Type locality: Europe. 



