SEDGE FA^IILY 



337 



146. Carex schottii Dewey. Schott's Sedge. Fig. 



Care.r schottii Dtwey, Bot. Mex. Bound. Surv. 231. 1858. 



Carex barbarac Parish, Bull. South. Calif. Acad. Sci. 4: 108. pi. 14. 



1905; not Dewey. 



Culms .'^tout, in large clumps, 10-15 dm. high, sharply 

 triangular and rough above. Leaf-blades flat with revo- 

 lute margins, 6-12 mm. wide, serrulate, the new lower 

 sheaths strongly yellowish-brown tinged, sharply keeled 

 and hispidulous dorsally, the ventral side very fragile, 

 breaking and becoming filamentose ; staminate spikes 

 about 3, elongate linear, 8-14 cm. long, 4 mm. wide ; 

 pistillate spikes (usually staminate above) mostly three, 

 sessile or nearly so, strongly separate, erect, elongate 

 linear, 11-14 cm. long, 5-6 mm. wide, the perigynia ap- 

 pressed-ascending, closely packed in several ranks ; lowest 

 bracts mostly exceeding culms; scales narrowly lanceo- 

 late, acute or obtusish, usually exceeding perigynia, 

 purplish black with broad 3-ribbed lighter center; peri- 

 gynia obovate, plano-convex, 3 mm. long, 1.75 mm. wide, 

 membranaceous, greenish straw colored, several nerved 

 on both faces, round tapering and nearly sessile at base, 

 abruptly beaked, the beak 0.25 mm. long submarginate ; 

 achenes lenticular ; stigmas 2. 



Stream banks, Upper Sonoran Zone; southern California from 

 Santa Barbara and San Diego Counties eastward into the San Ber- 

 nardino Mountains below 2500 feet. Type locality: Santa Barbara. 



822 



147. Carex senta Boott. 



Care.v senta Boott, III. Carex 4: 174. 1867. 



Care.v auriculata Bailey, Mem. Torrey Club 1: 19. 1889. 



Carex austromontana Parish, Bull. South. Calif. Acad. Sci. 4: 108. 



/. 15. 1905. 

 Carex bishallii C. B. Clarke, Kew Bull. Miss. Inf. Add. Ser. 8 : 70. 1908. 

 Carex nudata f. firmior and sessiliflora Kiikenth. in Engler Pflanzen- 



reich 4=": 337. 1909. 



Loosely cespitose and stoloniferous, the culms slender, 



4-7 dm. high, sharply triangular, brownish at base. Leaves 



6-12, the middle sheaths sparingly hispidulous dorsally and 



filamentose ventrally, the blades fiat or slightly revolute, 3-5 



mm. wide, the middle ones much reduced, the lower and 



upper 1-4 dm. long; terminal spike staminate, peduncled. 



3-4.5 cm. long ; pistillate spikes 1-3, sessile or short- 



peduncled, 2.5-5 cm. long, 5-9 mm. wide, the numerous 



peryginia ascending; lowest bract shorter than to exceeding 



inflorescence ; scales oblong-ovate or lanceelate, obtuse to 



acuminate, purplish-black with lighter center ; perigynia 



ovate, rounded and substipitate at base,, conspicuously 



several nerved on both faces, green or straw-colored, 



puncticulate. round-tapering at apex, abruptly minutely 



lieaked, the beak 0.25 mm. long, entire; achenes lenticular; 



stigmas 2. 



Swamps, Upper Sonoran and Transition Zones; southern Cali- 

 fornia north in the coastal counties to Alameda County, and in the 

 Sierra Nevada to Amador County. Type locality: Santa Inez Moun- 

 tains, California. 



148. Carex nudata W. Boott. 



Torrent Sedge. 



Fig. 824. 



Carex nudata W. Boott in S. Wats. Bot. Calif. 2: 241. 1880. 

 Carex hallii Bailey, Proc. Am. Acad. 22: 82. 1881. 

 Carex aciitina Bailey, Mem. Torrey Club 1: 52. 1889. 



Extremely densely cespitose, the rootstocks descending 

 obliquely, the culms slender, aphyllopodic, 3-8 dm. high, sharp- 

 ly triangular, somewhat roughened above, strongly dark 

 purplish at Ijase. Leaf-blades light green, flat with revolute 

 margins, 2.5-3.5 mm. wide, very smooth except on margins 

 above and towards apex, the basal sheaths filamentose, rounded 

 and hispidulous dorsally; staminate spike short-peduncled, 1.5- 

 3 cm. long; lateral spikes 3-5. sessile or short-peduncled, 1-4 

 cm. long. 6-7 mm. wide, the numerous perigynia ascending; 

 lowest bract shorter than culm, the upper ones very short, 

 consp^icuously bi-auriculate ; scales ovate or oblong-ovate, 

 much exceeded by perigynia, blackish with lighter midvein ; 

 perigynia lanceolate or ovate, compressed, 2.5-4 mm. long, 

 1.75 mm. wide, finely nerved on both faces, membranaceous, 

 greenish straw colored or purplish-black tinged, smooth or 

 slightly granular at apex, rounded and substipitate at base, 

 the upper portion empty, abruptly beaked, the beak 0.25 mm. 

 long, entire; achenes lenticular; stigmas 2. 



Rocky stream beds. Transition Zone; western Oregon south to Santa 

 Clara and Mariposa Counties, California. Tvpe locality: San Francisco 

 Bav. 



