MONOECIA TRIANDRIA. 
561 
glumis bracteisque gla- 
bris; nuce reticulato, 
foveolis consperso. E. 
Mich. 2. p. 1 67- Sp. pi. 4. p. 314. 
266. Nutt. 2. p. 205. 
glumes and bracteas 
glabrous; seed reticu- 
late, dotted. 
Pursh, 1. p. 45. Muhl. Gram. p. 
Stem one to two feet high, glabrous, acutely triquetrous. Leaves shorter 
than the stem, narrow, glabrous, sheathing at base; the sheaths winged. 
Spikes numerous, axillary and terminal on long peduncles, racemose, some- 
times somewhat paniculate, slender, the terminal ones nearly naked. Glumes 
lanceolate, acute, glabrous. Stamens two? Seed globose, rugose, rather 
with impressions than elevations. 
Grows in damp pastures. 
Flowers July — August. 
;■ 
1 8. Verticillata. Muhl. 
S. culmo simplicissi- 
mo, triquetro foliisque 
glabris; spica glomera- 
ta, nuda, glomerulis al- 
ternis, distantibus; glu- 
mis glabris; nucibus 
globosis, mucronatis, 
transversim rugoso- 
verrucosis. 
Stem simple, trique- 
trous, and with the 
leaves glabrous; spike 
clustered, naked, the 
clusters alternate, dis- 
tant; glumes glabrous; 
seed globose, mucro- 
nate, transversely wrin- 
kled. 
Sp. pi. 4. p. 317- Pursh, 1. p. 45. Muhl. Gram. p. 266. 
Stem about a foot high, very slender, triquetrous, glabrous. Leaves fili- 
form, shorter than the stem, glabrous, sheathing, with a few hairs sprinkled 
along the sheath. Flowers in distinct sessile clusters towards the summit of 
the stem. Spikes and flowers both small. Bracteal leaves scarcely longer 
than the spikes. Glume ovate, acuminate. Keel glabrous. Nut globose, 
small, tuberculate, distinctly mucronate. 
Grows in damp soils. 
Flowers July — August. 
9. Interrupta. 
S. culmo simplicissi- j Stem simple, trique- 
mo, triquetro, foliisque | trous, and with the 
VOL. II. B 4 
