702 CYPERACE.E CABEX 



green scales. On shores, California to Washington and the eastern states. 



C. acntina Bailey Mem. Torr. Bot, Club 1, 52. Stems erect, 16-20 

 inches high, smooth or r,ough above, leaves flat and thin, about as long as the 

 stem; the lower lor ii, bracts flat and leaf -like, about equalling the stem, 

 the margins mostly serrate: spikes 4 or 5, the upper 1 or 2 staminate, all 

 approximate and sessile or the lower short-peduncled, 1-2 inches long: peri- 

 gynia thin and soft, yellowish somewhat inflated, the small beak entire, 

 shorter or longer and broader than the obtuse or muticose scale. Alon^; 

 rivers, eastern Oregon. 



Var. tenuior Bailey 1. c. 53. Tall and more slender: leaves 

 narrower; spikes an inch or less long and more scattered: perigynia smaller. 

 Margins of mountain lakes, Oregon and Washington. 



C. bovina. Densely matted and forming extensive meadows of many 

 acree: stems slender 12-18 inches high, erect: leaves strongly carinate, 

 nhorter than or equalling the stem: spikes all peduncled or the upper one 

 sessile, lower more or less ceruuous 12- 18 lines long, nearly 3 lines thick: 

 perigyuia elliptical, somewhat inflated, broader and shorter than the lanceo- 

 late acuminate scale. On lands that are overflown by the Columbia river in 

 Jnne, 



4 CRYPTOCARP^E Tuckerman Enum. Meth. 11. Large spec- 

 ies with cernuous or drooping large spikes which bear long and 

 conspicuous mostly dark scales: stigmas 2. 



C. cryptocarpa C. A. Meyer Mem. Acad. St. Petersb. i. 226, t. 14 

 Stems stout, erect, sharply angled, rough above, l|-3 feet high: leaves 

 smooth, pale 2-3 lines wide, the basal shorter than or -equalling the stem, the 

 upper ones and the bracts shorter, all withering with the first frosts: stami- 

 nate spikes 2-4, peduncled, 1-2 inches long: pistillate spikes 2-5. all on 

 long filiform peduncles and drooping, densely -flowered, often staminate at 

 the top, 1-3 inches long, ;>-4 lines in diameter, scales purple-brown, ascend- 

 {.ng, lanceolate, acuminate: perigynia elliptical, light colored, 1J lines long; 

 ipped with a very short entire beak, much shorter than the scale. In salt 

 marshes Cali ornia to Alaska and Greenland. "' 



C. Sitchensis Prescott Bong. Veg.' Sitch. 168. Sterns stout, 1-4 feet 

 high, sharply angled, rough, many-leaved at base. 3-4, lines wide, -very dark 

 green, persistent through the winter, very rigid, the radical longer than, the 

 stem: spikes dark purple, the staminate 1-4, sessile, erect, 1-3 inches long, 

 2-3 lines thick: pistillate spikes 3-5. sessile or more or less pedunc ed, 1.-4 

 inches long, 3-5 lines thick, spreading or nodding, loosely flowered at base, 

 dense above: scales purple, the staminate oblong, obtuse, the pistillate ovate 

 or lanceolate, acuminate or awned: perigynia purple or orbicular-obovate, 

 abrubtly short-beaked \ stipitate, shorter than the scale. In marshes, Califor- 

 nia to Alaska. 



C. Barbaras Dewey Bot. Mex. Bound. 231. Stems slender 2 feet or 

 more high, glaucous leaves surpassing the stem: pistillate spikes 2-4, linear, 

 1-3 inches long, the upper 1 or 2 sessile or short peduncled, the lower very 

 long on a peduncle 3-4 inches long: scales dark, obtuse or muticose: perigy- 

 uia small appressed, pale, more or less attenuate below, abruptly contracted 

 into a short and entire beak, nearly nerveless, shorter or longer than the 

 white backed and brown edged obtuse or muticose scale. Banks of streams, 

 California and Oregon. 



C. Howellii Bailey Mem. Bot. Club i 45. Stems stout 3-6 feet high, 

 sharply angled, rough above: leaves broad and lax, very long, the sheaths 

 covering the base of the stem with along and papery brown envelop: stam- 



