336 



CYPERACEAE 



143. Carex sitchensis Prescott. 



Sitka Sedge. Fig. 819. 



Care.v sitclicnsis Prescott, Mem. Acad. .St. Petersb. II. 6: 169. 1S32. 



Carex aquatilis W. Boott in S. Wats. Bot. Calif. 2 j 241.^ 1880; not W ahl. 



Carex howcUii Bailey, Mem. Torrey Club 1: 45. 1889. 



Carex dives Holm, Am. Journ. Sci. IV. 17: 312. 1904. 



Carex pachystoma Holm, Am. Journ. Sci. IV. 20: 302. /. 7-8. 1905. 



Densely cespitose from elongated rootstoc'ks, the culms 

 6-12 dm. high, stout, sharply triangular, strongly reddened 

 at base, phyllopodic, the sheaths smooth, not filamentose, 

 the upper and lower leaves with well-developed blades, the 

 middle one shorter. Leaf-blades flat or channelled at base, 

 2-9 mm. wide ; staminate spikes 2-5, slender ; pistillate 

 spikes 3-5, strongly separate, on long slender peduncles, 

 linear-cylindric, 3-9 cm. long, 4.5-6 mm. wide, very many 

 flowered ; bracts sheathless, the lower usually exceeding 

 the culm ; scales lanceolate, sharp-pointed, brownish with 

 lighter center, the apex often noticeably hyaline in age ; 

 perigynia ovate or oval, 3-5.3 mm. long, 1.5-2 mm. wide, 

 widest near middle, obscurely nerved, substipitate, punctic 

 ulate, greenish straw-colored, little red-dotted, apiculate ; 

 achenes lenticular; style slender; stigmas 2. 



Near the coast. Humid Transition and Canadian Zones; Prince 

 William Sound, Alaska, to Santa Cruz County, California. Very 

 local southward. Type locality: Sitka, Alaska. 



144. Carex aquatilis Wahl. Water Sedge. Fig. 820. 



Carex aquatilis Wahl. in Vet. Akad. Nya Handl. Stockholm 24 : 165. 1803. 

 Carex stans Drejer, Revis Caric. Bor. 40. 1841. 

 Carex variabilis Bailey, Mem. Torrey Club 1: 18. 1889. 



Rootstocks slender, sending forth long horizontal stolons, 

 the culms cespitose, 2-7 dm. high, slender, sharply triangular 

 above, reddened at the base. Leaf-blades 2-6 mm. wide; 

 staminate spikes 1-2, slender; pistillate spikes 2-4, sessile 

 or short-peduncled, not aggregated, linear, 1.5-6 cm. long, 

 4-6 mm. wide; lowest bract exceeding culm; scales oblong- 

 obovate to lanceolate, obtuse or acutish, blackish to reddish 

 brown, 1-nerved or with a lighter center; perigynia elliptic- 

 obovate, 2.5 mm. long. 1.25 mm. wide, broadest below; apex, 

 nerveless but with a median ridge, substipitate, puncticulate, 

 granular, red-dotted, minutely beaked, the beak entire; 

 achenes lenticular; style slender; stigmas 2. 



Swampy grounds. Transition and Canadian Zones; Quebec to Alaska 

 south to New Mexico and northern California; widely distributed m 

 northern Eurasia. Rare in our range. Type locality: Europe. 



145. Carex barbarae Dewey. 



Santa Barbara Sedge. 



Fig. 821. 



Carer barbarae Dewey, Bot. Mex. Bound. Surv. 231. 1858. 

 Carev laciniata Boott in Benth. PI. Hartw. 341. 1857 (name 



only); and 111. Carex 4: 175. pi. 594 (in part). 1867. 

 Carex lacunarum Holm, Am. Journ. Sci. IV. 17: 303. /. 12-1:,. 1904. 



Cespitose with long horizontal stolons, the culms 3-10 

 dm. high, phyllopodic, stout, sharply triangular, serrulate 

 at least in ' inflorescence. Leaves 7-12, the sheaths 

 brownish-puberulent, the middle more or less filamen- 

 tose, the blades light green, thick, flat or channelled, 

 3.5-9 mm. wide, serrulate, the middle ones much re- 

 duced; staminate spikes one or two, narrowly linear; 

 pistillate spikes 2-5, sessile or short-peduncled, oblong 

 or linear-cylindric, 2.5-8 cm. long, 5-8 mm. wide, the 

 very many' perigynia ascending ; lowest bract shorter 

 than to exceeding the inflorescence ; scales narrowly 

 ovate, hispid mucronate, occasionally some merely acute, 

 reddish-purple with lighter center; perigynia narrowly 

 to broadly obovate, substipitate, 3-4.5 mm. long, 2-2.5 

 mm. wide, obscurely nerved on both faces, straw-colored 

 at length brownish, puncticulate, often granular, slightly 

 serrulate above, the beak 0.5 mm. long, sharply biden- 

 tate and hispidulous between the teeth ; achenes lentic- 

 ular ; st\le slender ; stigmas 2. 



.Southern Oregon south to San Bernardino, California, west of 

 the higher Sierra Nevada; Ujjper Sonoran and Transition Zones. 

 One of the most characteristic California species. Type locality: 

 Santa Barliara, California. 



