242 CYPERACE.E. Carex. 



obovate, lenticular or oval and triangular, chestnut-colored : stigmas rarely 3. 

 Eeichenb. 1. c., t. 234; Boott, 111. iv. 163, t. 542-545. 



Santa Clara Valley, 12 miles from San Jose, Bolander. From Arctic America to the northern 

 Atlantic States, Wyoming and Washington Territory ; also in Europe and northern Asia. 



44. C. angustata, Boott. Densely cespitose : stem 2 to 3i feet high, sharply 

 angled and very scabrous : leaves green or glaucous, 1 or 2 lines broad, scabrous, 

 shorter than the stem ; lower sheaths conspicuously fibrous-reticulate : bracts foli- 

 aceous, without sheaths, the lowest shorter than or slightly exceeding the stem ; 

 auricles purple or ferruginous, small, round or oblong : spikelets 3 to 6, to 3^ 

 inches long and 1 to 3 lines thick, the male 1 to 3 and contiguous, the female 1 to 

 4 (the upper or all male at top or to below the middle) contiguous or remote, sessile 

 or the lower peduncled and loosely flowered at base ; scales purple with green mid- 

 nerve, lanceolate, obtuse or acute : perigynium oval, ovate or elliptical, beakless or 

 gradually or abruptly short-beaked with entire or emarginate orifice / compressed, 

 granular, smooth or rarely 1 - 2-toothed on the upper margins, nerveless or 1-4- 

 nerved, broader and longer or shorter than the scale : nutlet chestnut-colored, orbicu- 

 lar. Hook. Fl. Bor.-Am. ii. 218, and 111. iv. 173, t. 586-588. C. stricta, Torr., 

 etc., not of Goodenough. 



On the American River, among rocks (Bolander, n. 4534) ; also in Matilija Canon (Peckham) ; 

 from Canada to Florida and Texas, and in Colorado. 



. 45. C. senta, Boott. Stem (lower part wanting) 1 8 inches high, sharply angled, 

 scabrous : leaves glaucous, 2 lines broad, shorter than the stem ; lower sheaths pur- 

 ple, scabrous, the margins fibrous-reticulate : bracts without sheaths, narrow, the 

 lowest shorter than the stem ; auricles purple, roundish, small : spikes 3 or 4, pur- 

 ple, 1 to 1| inches long, cylindrical-oblong, densely flowered, erect; female two, the 

 upper sometimes male at top and in the middle, on very short included peduncles 

 (1 or 2 lines long) and enclosed at base in a purple sheath ; scales purple, pale in the 

 middle, oblong, obtuse or the upper acute or tipped with an abrupt short rough 

 mucro : perigynium more or less purple, ovate, rostellate with entire orifice, com- 

 pressed, slenderly nerved, toothed on the upper margins, longer and broader than 

 the scale : nutlet (immature) orbicular. 111. iv. 174 (under C. angustata). 



Santa Inez Mountains, in canon 20 miles northeast of Santa Barbara, on road to the "Coal 

 Mines," Brewer, n. 350. Dr. Boott in mentioning the species simply notices the scabrous sheaths 

 and the toothed margins of the perigynium. 



46. C. lenticularis, Michx. Cespitose : stem slender, 12 to 18 inches high : 

 leaves 1 or 2 lines broad, pale, often longer than the stem : bracts foliaceous, often 

 sheathed, the lower much exceeding the stem ; sheaths 2 to 8 lines long : spikelets 

 6 or 7, purplish, cylindrical or clavate, the uppermost 8 to 1 2 lines long, often female 

 at top, simple or with a smaller one at base, the rest female or the upper sparingly 

 male at base, attenuate and loosely flowered, from 3 lines to 1 J or even 3 inches 

 long and 1 to 1 J lines thick, crowded or approximate, sessile or the lower peduncled ; 

 peduncles 2 lines to 6| inches long; scales 1-3-nerved, oblong or ovate, obtuse, 

 purple with the middle and margins pale : perigynium pale, ovate and attenuate or 

 broadly oval and abruptly ending in a short cylindrical beak with entire orifice, 

 biconvex, stipitate, nerved, granular, longer and broader than the scale : nutlet dark 

 brown, oval or obovate, lenticular. Boott, 111. i. 30, t. 77. 



In the Sierra Nevada, in Yosemite Valley (Bolander, n. 6198 2 ) and at Silver Lake (Brewer, 

 n . 2099) ; also by Kellogg. The species is found from Arctic America to the northern border of the 

 Atlantic States, and was collected by Lyall in the mountains of Washington Territory. 



47. C. salina, Wahl., var. minor, Boott. Rootstock creeping : stem 2| to 5 

 inches high, obtusely angled, smooth : leaves pale, 1 to 1J lines broad, exceeding 

 the stem : bracts foliaceous, sheathed, commonly all exceeding the stem ; sheaths 1 

 to 6 lines long : spikes 2 to 6, erect, ellipsoidal, the single male 3 to 6 lines long 

 upon a peduncle 9 lines long, the female 3 to 8 lines long and 1 to H lines thick, 



