CYPERACER. (SEDGE FAMILY.) 531 
$1. SCLERIA Proper. Nut supported by an annular or 3 — 6-lobed disk. 
* Nut smooth: stamens 3. 
1. S. triglomerata, Michx. Culms stout, rough, sharply angled (29 - 39 
high); leaves broadly linear, smooth or hairy; spikes disposed in 3 — 6 clusters 
at the summit of the culm, and 1-2 distant lateral ones on long and drooping 
peduncles; disk formiug a complete narrow ring at the base of the globose- 
ovate yellowish white nut.— Low grounds, Florida, and northward. June- 
August. s 
2. S. oligantha, Ell., Michx.? Culms (19-29 high) slender, smooth, 
sharply angled, often glaucous, like the smooth linear leaves; spikes 3 —5, sin- 
gle, scattered, forming a terminal interrupted compound spike, and 1 - 2 distant 
lateral ones, on long drooping peduncles ; bracts leafy ; disk of 9 minute globular 
lobes at the base of the white and polished ovate nut. — Thickets and margins of 
fields, Florida to South Carolina, July. 
* * Nut reticulated: disk of 3 flattened lobes : stamens 2. . 
3. S. reticularis, Michx. Culms slender (19 - 119 high), scabrous,below ; 
leaves narrowly linear ; spikes clustered, axillary and terminal, the lateral ones on 
a short erect peduncle ; nut globose, small, reticulated and pitted; lobes of the 
disk appressed to the base of the nut. M of dst pne and north- 
ward. Aug.and Sept. 
4. S. laxa, Torr. Clic el, siat tit a Mig? Testi Hg; ibt 
spikes separate, the axillary ones on a long and drooping peduncle ; nut globose, 
wrinkled and somewhat hairy, obscurely pitted ; lobes of the disk appressed to 
the nut. (S. reticularis, El.) — Damp pine barrens, Florida, and northward. 
Aug. — Oct. — Culms 1°-14° long. Nut 1j/- 2" in diameter. 
* ** Nut warty: disk bearing 3-6 globular lobes: stamens 3. 
5. S. ciliata, Michx. Culms slender, rigid (1}°- 2° high), smooth below, 
sparingly fringed on the angles above ; leaves 2, narrowly linear (1 wide), rigid, 
smooth, or with scattered hairs on the margins; sheaths pubescent ; clusters ter- 
minal ; sterile spikes large, many-flowered ; nut globose, pointed, closely beset 
with unequal warts, these corresponding to the angles of the nut and at the 
base larger than the rest; lobes of the disk 3, globular, entire. — Dry pine bar- 
rens, Florida to South Carolina. June- Aug.— Rhizoma thick and creeping. 
6. S. Elliottii. Culms stout (19 —19 high), densely rough-fringed on the 
angles throughout ; leaves 3 — 4, broadly linear (2 3" wide), closely fringed on 
the margins and midrib beneath; sheaths pubescent; clusters 2, the lateral one 
remote, on a short erect peduncle; sterile spike small, few-flowered ; nut globose, 
deeply wrinkled or pitted, and with slender warty projections at the base ; lobes 
of the disk 3, globose, 2-lobed. (S. hirtella, Ell., Michx.? not of Swartz.) — 
Low pine barrens, Florida to North Carolina. July. 
7. S. pauciflora, Muhl. Smoothish or hairy or villous throughout ; 
culms (6' — 12" high) slender ; leaves narrowly linear ; clusters small, of 1 -few 
spikes, terminal, and also a remote axillary one on a short erect peduncle; ster- 
: a e nut p — pointed, — — - minute 
