3 S. ciliata Mx. Culm 1 to 2f high, acutely 3-angled, the angles scabrous above; lvs. channeled, pubescent as well as the sheaths; bracts fringed with long, whitish hairs; fascicle subsolitary, terminal ach. subglobous, white, roughened with scattered warts; perig. a narrow border, bearing 3 obtuse tubercles. - Damp soils, S. Car. to Fla.

4 S. pauciflora Muhl. St. 10 to 16' high, triangular, slender, smoothish; lvs. narrow, nearly smooth; sheaths pubescent; fascicles 1 to 3, few-flowered, the lateral, if any, pedunculate; bracts foliaceous, ciliate; spikes in pairs; glumes membranous, mucronate, somewhat ciliate; sty. 3-cieft; ach. globous, rough, white and shining; perig. a narrow ring upon which are 6 roundish, minute tubercles. - Wet or dry soils, N. H, to Ohio and Fla. Aug. - There are several well market) Tarieties.

β . Very slender, smoothish; lateral fascicle 1-flowered, sessile, or none. - Mass.

to Ohio. About If high. γ. Very slender, scabrous-hirsute; lateral fascicle 1 to 2-flowered, sessile; lower bracts much exceeding the culm. - Ga. and Fla. (S. Carolina Willd. ?) (5. Stouter, tall (2 to 3f high), edges denticulate-cilia to; lateral fascicles on short (1 to 2') peduncles. - S. States.

5 S. reticularis Mx. St. 1 - 2f high, triangular, rather slender; lvs. l" wide, channeled, radical 6 - 12' long, cauline few; fascicles 2 - 5, lateral and terminal, distant, loose-flowered, subsessile; spikelets somewhat in pairs, theOrder CLV Cyperaceae The Sedges Part 11 2157 many-flowered, at the base of the . Order CLV Cyperaceae The Sedges Part 11 2158 ; glume light brown, ovate acuminate; sta. 2; perig. 3-lobed; ach. globous, of a dead white, 3/4" diam., conspicuously reticulated and deeply pitted - Borders of ponds, R. I. (Olney), to Fla. The acheniurn is a curious and beautiful object.

6 S. laxa Torr. St. 1 - 2f high, weak, diffuse, acutely triangular, slender; lvs. flat, 2" wide, smooth; fascicles about 3, open one terminal, the others lateral and very remote; ped. 2 - 6" long, compressed, slender, often recurved; spikelets distant, in pairs, the sterile at the base of theOrder CLV Cyperaceae The Sedges Part 11 2159 ; sta. 2; perig. deeply 3-lobed; ach. about 1" diam., globous, whitish, marked with brownish, papillous transversa ridges and pits. - Near the sea coast, N. J. to Fla. Sept. (S. reticularis Muhl.)

7 S. verticillata Muhl. St. 6 - 8 - 12' high, triquetrous, slender, glabrous; lvs. linear, narrow and flat, shorter than the stem; fucscicles smooth, purple, 4 - 6. sessile, few-flowered, appearing as if verticillate; bracts minute, setaceous, about as long as the fascicles, scabrous upward; scales ofOrder CLV Cyperaceae The Sedges Part 11 2160 ovate. smooth, scabrous and keeled; ach. globous, rugous, a little more than -1/2' diam, abruptly mucronate and somewhat 3-sided at base. - Very abundant in Junius, N. Y. (Start well) to Car., W. to Ohio (Sullivant). (Hypoporum verticillatum Nees.)

8 S. interrupta Mx. Palo green, sparingly hirsute; culm 3-angled, 12 to 30' high; lvs. linear, flat, striate, 3-veined, much shorter than the culm; fascicles few-flowered, 5 to 7, alternate, approximate at the summit forming an interrupted spike 2 to 3' long; glumes conspicuously cuspidate and bristly-citiate, rusty brown; ach. 1/2" long, smooth, purplish white, 3-sided and fluted at base. - N. Car., Fla. and La.

9 S. gracile. Filiform, smooth, 1 to 2f high; culm 3-angled; lvs. few, shorter; spikes 3" long, few (1 to 5 pairs), in a terminal fasciele; glumes ovate, mucronate, purplish brown; bract erect as. if a continuation of the culm; stam. 3; ach. 1" long, white, ovoid, obscurely 3-angled, longitudinally ribbed.-S,. Ga., Fla. to Texas. (Hypoporum Torr.)

10 S. Baldwinii. Culm sharply 3-aagled, edges scabrous, jointless, 2 to 3f high; lvs. radical, long, linear, keeled; spikes 3 to 5 pairs, 5 ' long, in a terminal fascicle; bracts 3, the longest erect, all purple at base; glumes brownish purple, lanceolate, acuminate; stam. 3; ach. large (near 2" long), ovoid, dull, even, whitish. - Ga. and Fla. (Chapman.)

18. CAREX, L. Sedge. (The classical name, perhaps from Lat. careo,to lack; referring to the sterile spikelets.) Fls. diclinous; spikes 1 or more, either androgynous (with both staminate and pistillate fls.), or with the two kinds in separate spikes on the same plant (monoecious) or rarely on separate plants (dioecious); glumes single, 1-flowered, lower ones often empty;Order CLV Cyperaceae The Sedges Part 11 2161 stamens 3; Order CLV Cyperaceae The Sedges Part 11 2162 stigmas 2 or 3; perigynium (of 2 united scales) of various forms, persistent, enclosing the lenticular or triangular achenium. - Order CLV Cyperaceae The Sedges Part 11 2163 Culms triangular, growing in tufts.

The following account of our species of Carex is from the pen of Prof. C. Dewey (D.D.), revised by him expressly for the present Edition. The annexed Analytical Table has been prepared by ourselves (with the aid of copious and well authenticated specimens, among which is a full set communicated by Dr. Sartwell), on the busts of the artficial subdivision of the genus adopted by Prof. Dewey in the former edition. It is useless to admonish the student that this table is not perfect, and may sometimes lead him astray. Yet, in the main, its subdivisions are correct, and cannot fail to lead to correct results, and thus greatly facilitate the study of this the most extensive and difficult genus in our Flora.

N. B. - In the specific descriptions the reader is often referred as follows: (Boott, illust.) or (B. t.). These refer by number to the Illustrations of the Genus Carex, in the recent splendid work of Francis Boott, M.D., President of the Linnaean Soc of England.

§ I. STIGMAS 2. ACHENIUM DOUBLE-CONVEX. (*)

* A. Spike single, - monaœcious, staminate at the top....................

No. 1

- dœcious, orOrder CLV Cyperaceae The Sedges Part 11 2164 spike with stamens at base............

No. 2, 3

* B. Spikes several, androgynous (with both kinds of flowers). (¶)

¶ 1. Stamens variously situated, above, below, or in the middle, sometimes the whole spikeOrder CLV Cyperaceae The Sedges Part 11 2165 - Spikes 4 to 8..........................

Nos. 4 - 6

- Spikes 10 to 20....................................

Nos. 7, 8

¶ 2. Stamens at the summit of the spikelets. (a)

a Spikelets evidently paniculate and perigynium not rostrate........................

Nos. 9, 10

a Spikelets 3 to 6, approximate into one spike, (b)

b Spike ovate. - Glume equaling the perigynium............................

Nos. 11 - 13

- Glume shorter the perigynium...............................

No. 14

b Spike oblong, a little loose. Glume shorter than the perigynium......

Nos. 15 - 17

a Spikelets 3 to 8, remote. Perigynium radiating, - longer than glume..............

Nos. 18 - 20

- shorter than glume....

No. 21

a Spikelets 8 to ∞, approximate in a decompound spike, (c)

c Perigynium rostrate, not longer than the glume............................

Nos. 22,25

c Perigynium rostrate, longer than the glume, (d)

d Spike cylindrical, of 8 to 15 spikelets........................

Nos. 24, 25

d Spike large, branched, of ∞ spikelets.............................

Nos. 26, 27

d Spikes elliptical, of 8 to 10 spikelets...........................

No. 28

¶ 3. Stamens at the base of the spikelets. (e)

e Perigynia radiating, in remote spikelets. - Glumes green.................

Nos. 29 - 31

- Glumes hyaline, white..............

Nos. 32,33

e Perigynia suberect, spikelets ovate-lanceolate, few-fruited........................

Nos. 34 - 30

e Perigynia suberect, spikelets oval, (f)

f Perigynia not winged, about equaling the hyaline or brown glume.......

Nos. 37,33

f Perigynia distinctly winged, broadly or narrowly, (g)

g Perigynia short-rostrate, - shorter than the glume..................

Nos. 39, 40

- equaling the glume.....................

No. 41

- longer than the glume, (h)

h Perigynia spreading (not radiate)...............................

Nos. 42, 43

h Perigynia suberect or appressed....................................

Nos. 44 - 46

g Perigynium long-rostrate, - equaling the glume.......................

No. 47

- longer than the glume....................

Nos. 48 - 50

* C. Staminate and pistillate flowers in separate spikes. (¶)

¶ 4. Staminate spike single. -Order CLV Cyperaceae The Sedges Part 11 2166 Spikes sessile, 1 or 2 only..

No. 51

-Order CLV Cyperaceae The Sedges Part 11 2167 Spikes sessile, 3 to 5......................

Nos. 52 - 54

-Order CLV Cyperaceae The Sedges Part 11 2168 Spikes pedunculate.........................

Nos. 55, 50

¶ 5. Staminate spikes 1 or more and theOrder CLV Cyperaceae The Sedges Part 11 2169 spikes often staminate at summit, (k)

k Glumes awnless, mostly obtuse and dark colored. (1)

1 Sterile spikes 1 or 2. - Glumes all obtuse and black..............................

, Nos. 57, 53

- Glumes, at least the lower, acute, brown......

Nos. 59 - 61

1 Sterile spikes 2 to 4. Glumes acutish or acute...................................

Nos. 62, 63

k Glumes of the fertile spikes awned. (m)

m Sterile spikes 1 or 2. Plants not maritime..............................

Nos. 64, 65

m Sterile spikes 2 or 3. Plants maritime.................................

Nos. 66, 67

§ II. STIGMAS 3. Achenium Triquetrous. (*)

* D. Spikes androgynous (with both kinds of flowers). (¶)

¶ 5. Stamens at the summit of the spike, (n)

n Spikes single. - Leaves 2, broad, flat, with no midvein..........................

No. 68

- Leaves several, linear or setaceous...............................

Nos. 69 - 71

n Spikes several, some of them on long, radical peduncles, (o)

o Glumes of the fruit not longer than the perigynia...............................

Nos. 72, 73

o Glumes of the fruit long and leaf-like...........................................

Nos. 74 - 76

¶ 6. Stamens at the base of the 1 or more spikes.....................

Nos. 77

* E. Spikes dioecius, i. c., the fertile and sterile on different culms.................

Nos. 78, 79

* F. Terminal spike androgynous, pistillate at top; the others pistillate, (p)

p Perigynium hairy (at least, when young) as well as thelvs.,and bright-green.

Nos. 80 - 82

p Perigynium smooth. - Spikes erect or nearly so. Glumes green.........................

No. 83

- Spikes erect or nearly so. Glumes dark..............................

Nos. 84 - 86

- Spikes drooping. - Glumes acute, dark................................

No. 87

- Glumes awned or cuspidate..................

Nos. 83 - 90

* G. Staminate spike singly entirely staminate. (¶)

¶ 7. Pistillate spikes sessile or solitary, few, mostly ovoid, (q)

q Pistilate spikes oblong, dark brown.Order CLV Cyperaceae The Sedges Part 11 2170 Spikes stalked

No. 91

q Pistillate spikes ovoid, - all or mostly solitary..........................

Nos. 92, 93

- all sessile, approximate......................

Nos. 94, 95

- all sessile, remote..................................

Nos. 96,97