702 OYPERACE^ cabex 



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



C. acutina Bailey Mem. Torr. Bot, Club 1, 53. Stems erect, 16-20 

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

 stem; the lower 1 or 2 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 ormuticose scale. Alona; 

 rivers, eastern Oregon. 



Var. tennior 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. bOTina. Densely matted and forming extensive meadows of many 

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

 shorter than or equalling the stem: spikes all pedunoled or the upper one 

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

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

 late! acuminate scale. On lands that are overflown by the Columbiariver in 

 Jnnfe, 



§ 4 CRYPTOCARP.iE Tuckerman Enum. Meth. 11. Large spec- 

 ies ^ith 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 ihohes long, ;)-4 lines in diameter, scales purple-brown, ascend- 

 ing, lanceolate, acuminate: perigynia elliptical, light colored, li lines long; 

 ipped with a very short entil-e beak, much shorter than (ihe scale. In salt 

 mai'ehes Cali'ornia to Alaska and Greenland. 



C. Sitehensis Prescott Bong. Veg. Sitch. 16S. Stems stout, 1-4 feet 

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

 green, persistent through tiie" 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-.'>.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-cbovate, 

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

 nia to Alaska. 



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

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

 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 mutioose: perigy- 

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

 into a short and entire beak, nearly nerveless, shoi-ter 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. Stemslstout 3-6 feet high, 

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

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



