602 CLXI. GRAMINEA. PasPaLUM. 
1. A. PRATENSIS. Fo2z-tail Grass. 
St. erect, smooth, leafy, about 2f high, bearing an erect, dense, many- 
flowered, cylindric, obtuse, compound spike, about 2/ long; dws. flat, smooth, 
with swelling sheaths and ovate stipules; glwmes ciliate, connate below the 
middle, as long as the pale; awn twisted, scabrous, twice the length of the 
flower.—% Fields and pastures, Northern States. An excellent grass. Jn., Jl. § 
2. A. GenicuLATUS. Bent Fox-tail Grass. 
St. ascending, geniculate, rooting below, sparingly branched, 1—2f high; 
spike cylindrical, about 2’ long; Jvs. linear-lanceolate, smooth, flat, acute, a few 
inches in length, with slightly inflated sheaths, and long, entire stipules; glwmes 
slightly connate at base, hairy outside; palee truncate, smooth, half as long as 
the geniculate awn.—2. Wet meadows, N. Eng.! Mid. States and Brit. Am. Jn. 
B. aristulatus. Torr. (A. aristulatus. Mz.) Awns very short, 
15. CRYPSIS. Ait. 
Gr. kovrcis, concealment; from the flowers being concealed in the sheaths. 
Inflorescence an oblong spike; glumes 2, unequal, compressed, 1- 
flowered; pales 2, unequal, longer than the glumes; sta. 2—3; ca- 
ryopsis loose, covered by the palez. 
C. Virainica. Nutt. 
St. procumbent and geniculate, 6—12’ long, much branched from the base ; 
lus. finally involute, divaricate, short, rigid and pungent, subpilose above; spikes 
oblong-cylindrical, thick and lobed, more or less enclosed in the inflated sheaths 
of the leaves, the terminal one about 1’ long, lateral shorter and subcapitate ; 
glumes roughened on the keel, the upper a little longer—About Philadelphia, 
Barton. Sept., Oct. 
16. PHLEUM. 
Gr. oXeos 3 used by the ancients probably for a different plant. 
Glumes 2, equal, carinate, much longer than the palez, rostrate or 
mucronate ; pales 2, included in the glumes, truncate, awnless. 
1. P. pratense. Timothy or Herd’s Grass. 
St. erect, simple, terete, smooth, 2—4f high; dws. linear-lanceolate, flat, 
glaucous, roughish ; sheaths striate, smooth; stip. obtuse, lacerated; glumes ap- 
parently bicuspidate, in a dense, long, cylindric, green spike; anth. purple ; 
stig. white.—This is probably the most valuable of all grasses. Itis extensively 
cultivated, N. Eng., Mid. and W. States, and is probably native. 
2, P. atpinum. Mountain Herd’s Grass. 
St. about 1f high, simple, erect ; 2vs. shorter than the sheaths, broad and 
clasping at base, acute at apex, smooth; sheaths inflated ; spicate panicle oblong- 
ovate, very short (4—5” long) ; glwmes truncate, mucronate, with a fringed keel ; 
awns as long as the glumes.—?| Alpine regions of the White Mts., N. H. 
Also native of Arc. Am. 
Trize 4. PANICE2.—Inflorescence spiked or panicled. Spikelets 1 or 
(more usually) 2-flowered, one of the flowers being sterile or imperfect. 
Glumes usually (membranaceous) of a thinner texture than the palew, which 
are more or less cartilaginous, the lower palea half enfolding the upper, 
sometimes awned. 
17, PASPALUM. 
G7. racraos, millet; from the resemblance of the seeds. 
Flowers in unilateral spikes; glumes 2, membranaceous, equal, 
suborbicular, closely pressed to the 2 pales ; stigmas plumose, colored ; 
caryopsis coated with the smooth, plano-convex palez. 
1. P. sptaceum. Michx. (P. cilialifolium. Torr., G-c., not of Micha.) 
St. erect, very slender, 1—2f high, simple or branched from the base, with 
