242 CYPERACEAE 



124. C. rostrata Stokes. Cespitose, sending forth long horizontal stolons^ 

 culms phyllopodie, 3 to 12 dm. high ; leaf -blades 2 to 12 mm. wide ; staminate 

 spikes 2 to 4, slender, 1 to 6 em. long ; pistillate spikes 2 to 5, remote, cylindric, 

 sessile or short-pedimcled, 1 to 15 cm. long ; scales lanceolate, sharp-pointed ; 

 perigjaiia ovoid, 4 to 6 mm. long, greeuisli straw color or darker tinged. 



Swampy places ; abundant in the Sierra Nevada from Butte Co. to Tulare 

 Co., 4000 to 6200 ft. ; San Bernardino Mts. ; San Francisco Bay region. North 

 to Alaska, east to the Atlantic. 



Locs.— Sierra Nevai-la: (.liioo Mdws., Bcller 11494; Truckee, Hdler 7108; Walker Lake, 

 Mono Co., Congdoti; Yosemite, Bolander 4968; Bishop Creek, Inyo Co., Damdson 2555; Grant 

 Park, Dudley 1225; Little Kern Lake, Kern River Caiion, Jepson 4940. Bear Valley, San 

 Bernardino Mts., Abram^ 2850. San Francisco, Bolander 152. 



Refs.— Carex kostkata Stokes in With. Arrang. Brit PI. ed. 2, 2:1059 (1787), type from- 

 Great Britain; Mackenzie, Erythea 8:89, fig. 50 (1922). 



Sect. 34. Pseudo-Cypereae Tuckerm. Culms tall, generally stout, acutely angled, leafy below. 

 Leaf-blades flat, septate-nodulose. SpUces 3 to 9, the upper 1 to 3 slender, staminate, the 

 otliers normally pistillate, densely flowered, the upper approximate, the lower remote and 

 strongly poduncleil, often nodding. Bracts leaflike, nuich exceeding the culms, mostly not 

 sheathing. Pistillate scales aristate. I'erigynia spreading or reflexed, membranaceous or 

 stiff, triangular or circular in cross-section, 3 to 8 mm. long, closely many-ribbed, greenish 

 straw-color, smooth, stipitate, contracted into a rigid beak, the teeth slender. Achenes 

 triangular. Stigmas 3, short. 



125. C. hystricina ]\Iuhl. Cespitose and stoloniferous ; culms 1.5 to 10 dm. 

 high, rough above ; leaf-blades 2 to 10 mm. wide ; staminate spike 1 to 5 cm. long, 

 slender-peduncled ; pistillate spikes 1 to 4, ai:)proximate or strongly separate, 

 densely many-flowered, oblong or oblong-cylindric, 1 to 6 cm. long, the lower 

 slender-peduncled; scales green, S-nei-ved, rough-avTied, narrower and mostly 

 shorter than perigynia; perigynia 5 to 7 mm. long, ascending or at length 

 spreading. 



Swampy soil, Trinitj- Co. (Rush Creek, Yates 423). North to Alberta, east 

 to the Atlantic. 



Ref.— Carex hysteicina Muhl. in Willd. Sp. PL 4:282 (1805), type from Peun. 



126. C. comosa Boott. Cespitose and not stoloniferous; culms 5 to 15 dm. 

 high, strongly roughened to smooth ; leaf-blades 6 to 16 mm. wide ; staminate 

 spike 3 to 7 cm. long, slender-peduncled ; pistillate spikes 1 to 4, den.sely many- 

 flowered, oblong-cylindric, 1 to 7.5 cm. long, the upper erect and short-peduucled, 

 the lower slender-peduncled and at length nodding ; scales narrow, mostly shorter 

 than perigynia, verj^ rough-awned ; perigynia lanceolate, rigid, 5 to 7 mm. long, 

 reflexed when mature. 



Swamps near the coast: San Bernardino Valley; Santa Cruz Mts. to Lake 

 Co. North to Washingt.on, east to the Atlantic. 



Locs. — Santa Cniz Mts., Bolander 69; San Francisco, Bolander 2301 (in pai-t) ; Guerueville, 

 Davy; Blue Lakes, Jepson 26a, 20b. 



Refs.— Carex comosa Boott, Trans. Linn. Soe. 20:117 (1846), Ga. and Car., Elliott; Mac- 

 kenzie, Erythea 8:91, fig. 51 (1922). C. furcata Ell. Sketch Bot S. Car. and G.a. 2:552 (1824), 

 S. Car. and Ga., not C. furcata Lapeyr. (1813). C. jiseudo-oi/pet-us L. var. comosa Boott, 111. 

 Car. 4:141 (1867). 



