102 [158] BOTANY. 
very unequal, lanceolate, sharply carinate, each terminating in a bristle as long as itself. 
Palez somewhat coriaceous, linear-lanceolate, almost terete, long as the upper glume; the 
inferior acute, rough on the keel; superior pubescent on the back, with two approximate nerves, 
which are produced into teeth at the summit. Stamens 3; anthers linear. Styles long; stig- 
mas plumose on the inside. Caryopsis linear-fusiform. 
MONROA. Nov. Gen. 
Specule 2-6-flor ; flores sessiles distichi hermaphroditi v. terminali tabescente. Glume 2, 
suboppositz mitonatlS, flores multobreviores. Palesws 2 herbaece rigid, inferior apice 
mucronata vel brevissime aristata, ecarinata, equilatera, lateribus in spicule superiores versus 
basim baribatis, in spicula infima plerumpue glabris. Caryopsis glaberrima, palea superiori 
obtecta. Gramen annuum, repens, ramosissimum, ramis fasciculatis. Spica capituleformi 
seepius foliorum terminalium subspatheformibus suffulte. Spiculz 3, 2—6-flore. 
Méwroa squarrosa. COrypsis squarrosa, Nutt. Gen. 1, p. 49. Hills ‘ened ravines, Anton Chico, 
New Mexico; September. ‘On the arid plains of the Upper Missouri, near the Grand 
Detour, it covers, almost exclusively, thousands of acres.’’—Nudt. This grass is very distinct 
from Crypsis, and belongs, as we think, to the tribe Hordeacex. In the notice of Dr. James’ 
plants, collected in Long’s Ist expedition, (Ann. Lyc. Nat, Hist. N. York, 2, p. 254,) it was 
intimated that it was probably a distinct genus. The culm is prostrate, much branched from 
the base ; the branches 3-8 inches long. Leaves 1-2 inches long, flat, 1-2 lines wide, somewhat 
pungent, scabrous on the margin ; those near the summit of the facciculate branches with broad 
sheaths, embracing the small sessile heads, which thus appear involucrate. Spikelets 
mostly 3, closely approximated, usually 3-4-flowered. Glumes sometimes almost unilateral, 
linear—lanceolate, carinate. Palez 2-3 times longer than the glumes, lanceolate, acute; the 
lower one often bifid or 2-toothed at the summit, with a cusp or very short rigid bristle between 
the teeth, 3-nerved ; the lateral nerves nearly marginal. In the uppermost spikelet, and often 
in the middle one, these nerves are bearded with long white hairs towards the base; but the 
flowers of the lowest spikelet are usually quite naked. Superior palea bicarinate, pidhior obtuse. 
Stamens 3; anthers linear. Styles long and slender ; stigmas plumose. Achenium compressed, 
very dicino ti and even, usually covered with the sntrolexed margin of the superior palea. We 
dedicate this singular ah to Major Ménro, of the East India Company’s service, who has made 
the grasses an especial stud 
Triticum (AGROPYRUM) bivcnl Linn. Prairies, on the Canadian River; August. An awn- 
less glabrous form, with narrow and somewhat involute leaves. 
Serarra @uauca, Beauv. ; Kunth, Enum, p. 149. Banks of Little River, Indian Territory ; 
August. 
SETARIA ViripIs, Beauv. ; Kunth, l. c. p. 151. Laguna Colorado, New Mexico; August. 
Panicum Crus-Gatu, Linn. Oplismenus Crus-Galli, Kunth, l. c. 1, p. 143° With the last ; 
also on the banks of the Pecos, New Mexico. All the specimens from the latter locktity 
belong to the awnless variety. 
Panicum vireatum, Linn.; Kunth tl. c. p.100; Torr. Fl. N. Y. 2, p. 425. With the last. 
PANICUM SANGUINALE, Linn.; Torr. l. ¢. p. 493. - Alluvial banks of the Canadian, and near 
Galisteo, New Mexico ; ‘Sig det CcbSbee. 
PANICUM LATIFOLIUM, “Tia. Torr. l.c. p. 425. With the last. 
Panicum ostusum, H. B. K. ? Torr.in Marcy’s Rep. p. 299. Plains, Laguna Colorado, New 
Mexico ; September. 
Cencurvs trrsuLowEs, Linn. ; Torr. Fl. New York, 2, p. 931. On the Canadian River, and 
near Galisteo, New Mexico ; Octo’ 
‘TRIPSACUM DACTYLOIDES, Linn.; Micha. Fl. 1, p. 60. Pecan creek, Indian Territory. T. 
