SEDGE FAMILY 



195 



Locs. Sierra Valley, Jepson 8044; Honey Lake Valley, Davy 3288; 

 Jess Valley, Modoc Co., Jepson 7988; Klamath Hot Sprs., Goldsmith 26; 

 Yreka, Butler 1410; Sisson, Jepson 58a; Eureka, Tracy 2973; Chico, 

 Copeland 3182 ; Los Guilicos Valley, Bfoletti; San Francisco, Davy 4012 ; 

 Lake San Andreas, San Mateo Co., Davy 764; Irvington, Jepson; lone, 

 Braanion 1058; Oakdale, Jepson 8337; Victor, Parish 10562; Palo Verde 

 Valley, Hall 5919; San Bernardino, Parish; Elsinore, McClatohie 23. 



Kefs. ELEOCHARIS PALUSTRIS E. & S. Syst. Veg. 2:151 (1817); 

 Davy in Jepson, Fl. W. Mid. Cal. 85 (1901). Scirpus palustris L. Sp. 

 PI. 47 (1753), type European, Var. GLAUCESCENS Gray, Man. 558 

 (1848), type North American; tubercle narrower, sometimes half as long 

 as the achene. Southern California (San Jacinto Mts. and San Bernar- 

 dino Valley), aec. Parish, Bull. S. Cal. Acad. 3:68 (1904). 



a 



Fig. 14. ELEO- 

 CHARIS PALUS- 

 TRIS E. & S. a, 

 spikelet, X 1 ; 

 b, achene, X 8. 



3. E. obtusa Schult. (Fig. 15.) Stems tufted, numer- 

 ous, erect, nearly terete, striate, 7 to 10 (16) inches high; 

 annual with fibrous roots; spikes oblong-ovate to broadly 

 ovate, 2 to 4 lines long ; scales ovate to sub-orbicular, rounded 

 at apex ; bristles 6 to 9, mostly longer, sometimes nearly twice 

 longer than the achene; achene smooth, shining, obovoid with a narrow base, 

 somewhat flattened or biconvex with cord-like or thickened margins, the broad 

 summit bearing a very thin deltoid acutish tubercle, in outline something like 

 a cocked hat. 



Moist places or in shallow water, Sierra Nevada and North Coast Ranges. 

 North to Oregon. Atlantic States. 



Locs. Scott Valley, Lake Co., Tracy 2379; near 

 Willow Creek, Trinity Eiver, Tracy 3401 ; Oro Fino, Sis- 

 kiyou Co., Butler 7, 1855; Yosemite Valley, Jepson 8369. 

 Eefs. ELEOCHAPIS OBTUSA Schult. Mant. 2:89 (1824). 

 Scirpus obtusus Willd. Enum. Hort. Berol. 76 (1809), 

 type North American. 



4. E. monticola Fern. Resembling E. ob- 

 tusa ; stems 4 to 10 inches high ; spikes ovate- 

 lanceolate, 3 to 4*2 lines long; scales acutish, 

 more spreading. 



Northern Sierra Nevada, and north to Ore- 

 gon and Idaho. 



Eef. ELEOCHARIS MONTICOLA Fern. Proc. Am. Aead. 

 15:496 (1899), based on spms. from the northern Sierra 

 Nevada (Lemmon 485; Mary E. P. Ames, Plumas Co.), 

 and Ore. (Multnomah Co., Howell 408). 



5. E. bolanderi Gray. Stems tufted, 8 to 9 

 inches high, arising from rootstocks; spikes dark- 

 colored, narrow-ovate, 2y 2 to 3 lines long; bristles 3 or 4, about 14 to Vz ( or %) 

 as long as the achene; achene obovoid, triangular with cord-like ridges at the 

 angles; tubercle reduced to a flatish scar, very short and broad or somewhat 

 obscure. 



Central Sierra Nevada, 6000 to 7000 feet. 



Locs. Mariposa Grove, Bolander 4869; Hogan Mt., Mariposa Co., Congdon; Pea Eidge 

 road, Mariposa Co., Congdon. 



Eef. ELEOCHARIS BOLANDERI Gray, Proc. Am. Acad. 7:392 (18(68), type loc. Wawona 

 (Clark's), Bolander. 



6. E. acicularis R. & S. SLENDER SPIKE-RUSH. (Fig. 16.) Stems tufted, 

 YZ to iy 2 (or 8) inches high, filiform or setaceous; rootstock very slender, creep- 

 ing; spikelets a little flattened, 1 to 3 lines long, few-flowered; achene obovoid- 

 oblong, 1/2 line long, obscurely triangular, with 9 or 10 longitudinal ribs connected 

 by fine transverse lines ; tubercle broad, short and blunt. 



Moist places throughout California, but not reported from the deserts. All 

 continents. 



Fig. 15. 

 Schult, 



ELEOCHARIS OBTUSA 

 a, spikelet, X 4; b, 



achene and bristles, X 13. 



