UA 
CAREX | CYPERACEX  °: : 70 
long, about 2 lines thick, erect and clustered at the:summit of the stem, 
densely several-flowered or loose at the base, the third when present distant 
or sometimes nearly basal, peduncled: perigynia oblong, very’ pale, nearly 
2 lines long, lessthana line thick, beakless, narrowed toan entire orifice, 
longer than the ovate obtuse scale: stigmas 3. In bogs, Alaska to Califor- 
nia and the Atlantic States. 
§ Brcotorres Tuckerman |. c. 12. Small species with the ter- 
minal spike androgynous or all staminate: perigynia more or 
less round or pyriform, beakless, commonly glaucous. 
C. aurea Nutt. Gen. ii, 205. Light green: stems very slender, erect 
or reclining, 2-15 inches long: leaves flat, 1-144 lines wide, the basal equal- 
ling or exceeding the stem: bracts similar and exceeding the spikes: termin- 
al spike short-peduncled; pistillate spikes 2-4 oblong or linear-oblong, erect 
and clustered near the top, or the lower one distant, on filiform peduncles, 
loosely or densely few-flowered, 2-10 lines long: perigynia obovoid or snb- 
globose, yellow or brown and a line jn diameter when mature, beakless, 
longer than or equalling the membranous acute cuspidate’or short-awned 
scale. In wet meadows Oregon to Brit. Columbia and the Eastern States. 
Var. celsa Bailey Mem. Torr. Bot. Club 1, 75. Taller and strict, 
15-20 inches high: spikes large and compactly flowered, longer-peduncled. 
Oregon to California. 
§ 4 Dicrrata# Fries Corp. 187. Low species with ordinary 
leaves: sheaths membranous or hyaline and colored either not 
prolonged into a bract or the bract very short and not foliaceous : 
perigynia more or less 3-angled, often hairy, the beak straight or 
nearly so. . 
C. Richardsoni R. Br. Frankl, Journ, 751 Stems slender, rough, 
‘erect, 4-12 inches high: leaves flat, about a line wide, the basal shorter 
than or equalling the stem: staminate spike short-peduncled; pistillate 
spikes 1 or 2, erect, short-peduncled, 4-9 lines long, compactly several-flow- 
ered, close together: perigynia obovold, pubescent, about a line long, min- 
_utely beaked, shorter than the ovate purple conspicuously white-margined 
peas stig mas3. In dry soil California to Brit. Columbia and the Eastern 
tates. 
TRIBE vil SPH#RIODIPHORH Drejer Car. 9. Low species of 
dry ground with the leaves all radical. Staminate spikes solitary: 
pistillate spikes short, usually globular or short-oblong, more or 
less sessile and approximate or the longer ones radical. Perigyn- 
ia usually short and rounded, the beak straight and usually bifid,. 
firm or hard in texture, not inflated, hairy or scabrous. 
_C. filifolia Nutt, Gen. 11, 204. Densely tufted, pale green and glabrous: 
stems very slender, smooth, erect; 3-14 inches high: leaves filiform, rather 
stff, spike solitary, erect, bractless, staminate above, pistillate below, 3-15 
lines long, the pistillate part about 2 linesin diameter perigynia obovoid- 
oval, triangular, rough or somewhat pubesent at the summit a line long 
abruptly tipped by a short cylindrical hyaline entire beak, narrower than 
and about as long as the broadly oval scarious-margined obtuse or cuspidate 
scale. In dry soil California to British Columbia and Nebraska. 
C. vespertina. C.- Pennsylvanica of authors as to the Pacific coast 
plant. Stoloniferous: stems very slender, erect, 8-20 inches high: leaves 
