80 THE GENUS CAREX IN CALIFORNIA 



Co., Heller 10818; San Francisquito Creek, San Mateo Co., Davis; Gilroy Hot Spgs., Santa Clara 

 Co., Dudley; Iversons, San Mateo Co., Dudley; Calaveras Big Trees, Dudley; Eel River, Humboldt 

 Co., Dudley; Castle Rock, Sacramento River, Goldsmith 3; "California," R. M. Austin 764; San Jose, 

 J. R. Bush; Clear Creek, Butte Co., H. E. Brown 176; Clinton, Amador Co., Hansen 1658; I.oma 

 Prieta, Santa Clara Co., Davy 572; Burney Falls, Shasta Co., Dudley. 



Refs.: Carex nudata W. Boott in S. Wats. Bot. Cal. 2: 241 (188C); Kiik. in Engler, Pflzr. 

 420; 337 (1909). "C. decidua Boott" Boott in Pac. R. Rep. 4: 153 (1857). "C. angustata Boott" 

 W. Boott in S. Wats. Bot. Cal. 2: 242 (1880), in part. C. Hallii Bailev, Proc. Am. Acad. 22: 82 (1886) 

 (not Olney 1871), type loc. Oregon, Hall 594; Kiik. in Engler, Pflzr. 4 2 °: 333 (1909). "C. elata All." 

 Olney, Proc. Am. Acad. 8: 407 (1872). "C. decidua Boott" Olney, 1. c. C. pulchella Holm, based on 

 C. Hallii Bailey, Am. Jour. Sci. (4) 16: 457 (1903), not Berggr. (1878). "C. acuta L." Bailey, Proc. 

 Am. Acad. 22: 86 (1886). C. acutina Bailey, Mem. Torr. Club 1: 52 (1889), type from Deschutes 

 River, Ore., Howell 935. 



Very closely resembling in its densely cespitose method of growth the eastern Carex stricta 

 Lam. Ktikenthal's description in the Pflanzenreich (4 2 <>: 337) is to a considerable extent based on a 

 loosely cespitose species (C. senta Boott) which replaces the present species farther south. Good 

 herbarium specimens of Carex nudata showing its characteristic habit of growth are a rarity. 



109. C. eurycarpa Holm. Loosely cespitose and long stoloniferous from 

 creeping rootstocks, the culms aphyllopodic, 4-9 dm. high, slender, sharply triangular, 

 roughened above; leaves several to a culm, the blades flat with revolute margins, 

 3-4.5 mm. wide, roughened toward apex, the lower sheaths minutely hispidulous 

 and rounded dorsally, olive tinged ventrally, sparingly filamentose; staminate spike 

 more or less peduncled, usually 3-4 cm. long; lateral spikes 3-5, the upper often 

 staminate above, sessile or short-peduncled, 2-4 cm. long, 4-6 mm. wide, the numerous 

 perigynia appressed; lowest bract usually exceeding culm; scales lanceolate, short 

 acuminate, purplish-brown with prominent light midvein; perigynia broadly obo- 

 vate, 2.75 mm. long, 2 mm. wide, several-nerved on both faces, puncticulate, minutely 

 roughened, greenish or straw-color, rounded and substipitate at base, and rounded 

 and abruptly minutely beaked at apex, the beak 0.5 mm. long, emarginate. 



Type Locality: Falcon Valley, west Klickitat Co., Washington (Suksdorf 

 1284, 2962). 



Boggy meadows from Washington to northern California and south in the 

 Sierra Nevada to Mariposa Co. 



Locs.: Devils Lake, Mariposa Co., Congdon; Mill Creek, Mt. Lassen, Hall &■ Babcock 4310; 

 Goosenest foothills, Siskivou Co., Butler 855; Prattville, Plumas Co., Heller & Kennedy 8784; Plumas 

 Co., Ames; Black Fox Mts., Siskiyou Co., Dudley; Squaw Valley, Placer Co., L. S. Smith 559, 561, 

 562 (in part); Mrs. Watson's Meadow, El Dorado Co., Brainerd 42 and 49; Tallac, El Dorado Co., 

 Brainerd 46; Truckee, Hitchcock 340; Sissons. Dudley, L. E. Smith 691; Mt. Shasta, Dudley. 



Refs.: Carex eurycarpa Holm, Am. Jour. Sci. (4) 20- 303 (1905); Kiik. in Engler, Pflzr. 

 420 : 339 (1909). 



110. C. oxycarpa Holm. Loosely cespitose and long stoloniferous from 

 creeping rootstocks, the culms aphyllopodic, 4.5-9 dm. high, slender, sharply tri- 

 angular, slightly roughened above; leaves 3-4 to a culm, the blades flat with revolute 

 margins, 2-3 mm. wide, roughened toward apex, the lower sheaths hispidulous and 

 scarcely carinate dorsally and light brownish ventrally; terminal spike staminate, 

 stalked; lateral spikes 4-5, the upper 1-2 staminate, the lower 2-4 pistillate or an- 

 drogynous, sessile or short-peduncled, 2.5-4.5 cm. long, 5 mm. wide, the perigynia 

 numerous, appressed-ascending; lowest bract exceeding inflorescence; scales lance- 

 olate, acute, purplish-black with light midvein; perigynia obovate, 3.5 mm. long, 

 1.5 mm. wide, 3-5-striate on both faces, granular roughened, brownish, rounded and 

 substipitate at base, and rounded and abruptly minutely apiculate at apex, the 

 orifice entire. 



Type Locality: West Klickitat Co., Washington (Suksdorf 816). 



