THE GENUS CAREX IN CALIFORNIA 



83 



113. C. spissa Bailey. (Fig. 44). Root- 

 stocks stout, woody, the culms very stout, 

 10-18 dm. high, obtusely triangular, smooth; 

 leaves clustered above base, the blades glaucous 

 green, 7-14 mm. wide, flat with revolute 

 strongly serrulate margins, the sheaths brown- 

 ish tinged and strongly filamentose ventrally; 

 staminate spikes 3-6, 4-10 cm. long; pistillate 

 spikes 3-6, staminate at apex, approximate or 

 more or less separate, erect, sessile or nearly 

 so, linear-cylindric, 6-14 cm. long, 7-10 mm. 

 wide, the 150-300 perigynia appressed-ascend- 

 ing or at length spreading; scales narrowly 

 ovate, serrulate awned, light brownish with 

 green center and hyaline margins; perigynia 

 obovoid, flattened triangular, 3-4.5 mm. long, 

 light green, very obscurely nerved, mem- 

 branaceous, tapering at base, very abruptly 

 beaked, the beak 0.5 mm. long, emarginate; 

 style very strongly bent and twisted. 



Type Locality: San Diego Co., Cali- 

 fornia (Pringle). 



Banks of streams at low altitude from 

 Los Angeles Co. southward into Lower Cali- 

 fornia. 



Locs.: Lakeside, San Diego Co., Brandegee; 

 San Diego Co., Pringle; Glendale, Los Angeles Co., 

 Hasse; Spring Valley, San Diego Co., Stokes; Mt. Wilson, 

 Davidson; Santa Monica Canon, Barber 795; San Luis 

 Rey River, San Diego Co., Parish 4459; Jamul Valley, 

 Schoenefeldt 3820; Tecate River, M earns 3787; Pasadena, 

 McClatchie. 



Refs.: Carex spissa Bailey, Proc. Amer. 

 Acad. 22: 70 (1886); Parish, Bull. S. Cal. Acad. 4: 80 

 (1905); Kiik. in Engler, Pflzr. 4 20 : 422 (1909). 



XXXI. Hirt.e Tuckerm. Culms stout, 

 leafy. Rootstocks with long stolons. 

 Leaves septate-nodulose. Spikes 3-10, the 

 upper 1-5 staminate, slender, the others 

 pistillate, many-flowered, erect. Bracts 

 leaflike, equaling or exceeding the culm, 

 often sheathing. Pistillate scales ovate 

 or lanceolate, acute or aristate. Perigynia 

 mostly ascending, coriaceous, ovoid or 

 oblong- ovoid, somewhat inflated, nearly 

 orbicular in cross-section, many-nerved, 

 often hairy, round tapering at the base, 

 tapering into the bidentate beak. Achenes 

 triangular, often stipitate, the sides flat 

 or deeply concave, apiculate, continuous 

 or in some species jointed with the straight 

 or slightly flexuous or very abruptly bent 

 style. Stigmas 3. 



114. C. yosemitana Bailey. (Fig. 45.) 

 the culms 3-9 dm. high, sharply triangular, much exceeding leaves; foliage softly 

 pubescent, the blades not rigid, flat with revolute margins, 3-7 mm. wide; terminal 



Fig. 44. Carex spissa Bailey. 



a, inflorescence.^ X .*/»! b, scale, 

 c, perigynium, X 6. 



X 6; 



Cespitose from stout rootstocks, 



