CYPERACEAE 151 
ish or ld Ese mostly 4 or 5, various, the lower nee short ue broad, 
the upper and narrow, closely appressed: achene lin 2. a 3 m n ng, 
abruptly ue at the apex, eonstrieted at the base, over alae lon a the 
seale.—San ndy a and did soil, and T woods, Coastal Plain a P NS 
more N provinces, Fla. to Tex., Mo., and N. J. 
41. C. dipsaci a, Fernald. Plant perennial, 2-8 dm. tall, the scape k 
at least above: bracts of the involucre shorter than the inflorescence, or longer, 
often sparingly a. e rather crowded in obovate or cylindric- 
obovate 3d. subulate, 5— pes s ng, yellowish or Dn seales mostly 
4—6, various, the lower Pow and broad, the upper long and narrow: 
chene ime about 3 lo a presta pointed at the apex, slightly con- 
stricted at the base, fully E as long as the seale.—Dry, often acid, sandy soil, 
and woods, Coastal Plain and adj. e pa Ga. to Ky. and N. J. 
42. C. hystricinus Fernald. Plant perennial, 3-8 dm. tall, the scape smooth: 
braets - the involucre smooth: spikes oval or obovoid, 1.5-3 em. long: spikelets 
uid 4—10 mm. long, becoming golden-brown, ~~ lower en cee 
eales Pl subulate or linear-subulate, 3-5 mm. lon r shorte e bas 
of the spikelet, acute: achene linear, 9-9. om ire DOS ee a the 
apex, somewhat constricted at the base, much shorter than the scales.—Dry 
sandy soil and pinelands, Coastal Plain, "Ga. to Tex., Ark., and N. J. 
43. ©. ERA Porter. Plant e up to 8 dm. tall, tufted or gre- 
garious , bright-green: spikes E or nea oo , 1-2.5 em. long, not very den 
. lon 
spik =: linear-subulate, 8-10 m ng, 2—4-flowered, | pale. green:; sca Ye ae 
oblong t oe ‘lanceolate, 4-5 m m. long, acute or acutish, appre essed: achene 
linear- “ellipsoi 2. . long or prs larger, abruptly pointed, about 14 * 
long as the b or more E and river-banks, various provinces, Ga. 
Ark., Pa., and N. J. 
44. C. retrorsus Chapm. Plant perennial, 2—7 dm. tall, the seapes smooth: 
ate narrowly obovoid or eylindrie-obovoid, 1—1.5 mm. g, dense, quas 
mpound: spikelets subulate, 2-3 mm. long, the lower one beeoming reflexed: 
o a dug ng, 2-3 mm. long, closely appressed: achene broadly Pec 
ess tha m. long, abruptly pointed, somewhat shorter than the seale.—Sandy 
soil, EH and eult. grounds, Coastal Plain, Fla. to Miss. an d Ga 
45. C. Torreyi Britton. Plant aye 1—5 dm. tall, Piin pr tufted: 
red n qe s vx A so, 1. . long or less, den spikelets linear- 
e A. d ong, A or ess, 1—2-flow a i scales few, 
ong, often. notched and muc i m 2 hose apex, Ed. 
Mem pod ‘tulle 1.5 m eres nun pointed a m constricted at 
the base, fully % as long as the scale. [C. ha il ) Britton.]—Sandy, 
often acid, soil, low grounds, and pond m V l Plain and adj. pr ov- 
inces, Fla. to Tex., Ark., and S N. Y.—(W. I.) 
46. ©. Deeringianus o & pow Plant perennial, 4—12 dm. tall, e 
ish-green: spikes cylindric, 1-3 cm. long, very dense, the main ones usually 
compound: spikelets apie 24 mm. long, fully 0.5 mm. wide, 1-9 flowered, 
yellowish: scales usually 3, ovate, 2-2.5 mm ta ng, mucronulate, appressed: ` 
somewhat constricted at the base, abou t 28 as long as the seale. . cylindro- 
stachys (Fl. .) ]—Pin nelands, prairies, swamps, hammocks, and marshes, 
Coastal Plain, Fla. to Miss. and Ga. 
47. C. Pollardi Britton. Plant M Tp up to 13 dm. tall, bright- pee 
spikes oe to ellipsoid, 1-2 em. long, dense: spikelets linear, 3—4.5 m 
long, 1-1 wide, green: i few, elliptic to ovate-elliptic, 2-2.5 mm. 
