74 Cyperaceae 



coriaceous, pale olive, ovate to lanceolate, attenuate to a long beak ; 

 beak bidentate, the teeth about 2 mm. long; nutlet obovoid, 

 chestnut colored. (C Pseudo-Cyperus comusa Boott.) 

 Canyon near Burbanlt, Davidson. 



2. C. spissa Bailey. Stems stout, 1-12 m. high, smooth or near- 

 ly so; leaves numerous, rigid, glaucous, serrate, about equaling 

 the stem, 10-15 mm. wide; lower bract long, leaf-like, the upper- 

 most short or nearly obsolete; spikelets 6-12 or more, the lowest 

 10-15 cm. long, long-pedicelled, the upper becoming sessile, all 

 erect, cylindric; staminate 4-6 or more, 3-10 cm. long; scales 

 with a stout toothed awn; perigynium about 3 mm. high, elliptic 

 or obovate, coriaceous, few-flowered, yellowish-green. 



Occasional in the canyons of all the mountains and foothills. 



3. C. filiformis latifolia Boeckl. Stems 3-8 dm. high, stolon- 

 iferous ; leaves often exceeding the stems, 2—4 mm. wide, spike- 

 lets 3-4, purple, staminate 1-4, linear, 3-5 cm. long, more or less 

 pedicelled, the lower sessile; pistillate 2-4, oblong or cylindric, 

 2-5 cm. long, 6-8 mm. wide, densely flowered, remote, sessile or 

 the lowest pedicelled; pedicels scabrous; scales purple, pale in 

 the middle, acute, ciliate at the apex ; perigynium coriaceous, 

 hispid, ovoid, obtusely angled, olive-colored; beak short, with 

 short divergent scabrous teeth, broader and usually shorter than 

 the scales. 



Occasional in fresh-water marshes in the coast valleys, Davidson. 



4. C. laciniata Boott. Stems stout, sharply angled, (i-11 dm. 

 high; leaves rather numerous, nearly equaling the stems, 4-8 

 mm. wide; bracts very long; spikelets 4-6, cylindric; staminate 

 1-2, commonly pedicelled, 2.5-7 cm. long, 4-6 mm. wide; pistill- 

 ate 5-8 cm. long, 4-9 mm. wide, remote, the upper sessile, the 

 lower long-pedicelled, nodding; scales purple or ferruginous, 

 pale in the middle, ciliate, acute or with rough awn; perigynium 

 abruptly or gradually beaked, nearly entire to bidentate with 

 serrate teeth, compressed-lenticular, punctate, sparingly toothed 

 on the upper margins. 



First collected at Santa Barbara by Nuttall. Occasional in marshes in 

 our coast valleys. 



5. C. Barbarae Dewey. Stems 5-10 dm. high, leafy, irlaucous. 

 sharply angled and rough at least above; bracts leaf-like, the 

 lower long; pistillate spikes 2-4, 25-75 mm. long, narrow, the 



