776 Oedeb 156.— aRAMINE^. 



slender, 3—6' long, whoUy inclosed in the terminal swelling sheath; glumes uce- 

 qual, very wliite, much shorter than the white, subequal, obtuse pales ; grain oval, 

 I as long (J") as the pales. — W. N. T. (Mr. R. S. Brown) and southwestward. 

 After the sheath falls away the mature fls, turn brownish. (Agrost. longifl 

 Torr. ?) 



8 S. Indicus Brown. Culm erect, terete, glabrous, 2— 3f high; Ivs. involute, 

 tapering to filiform; sheath beardless at throat; joints blackish; panicle long (If), 

 slender, open, composed of short, erect, alteirnate spike-lilie racemes; glumes 2, un- 

 equal, much shorter than the subequal pales; grain dark resin-colored, oblong, 

 f as long as pales. — Pastures and waste grounds, S. States. (A. Indica L.) § "W. 

 Indies. 



9 S. compressus Torr. Glabrous; culm erect, much compressed, simple, leafy, 

 branched at base, 1 — 2f high ; Ivs. narrowly linear, scarcely shorter than the 

 stem ; keel prolonged into the open sheath ; stip. very short ; panicle purple, sub- 

 simple, contracted, the branches few and erect; glumes equal, acute, shorter than 

 the paleae, the upper emarginate, rarely muoronate ; paleaa ovate, obtuse, smooth, 

 sometimes deeply cleft ; stig. purple. — Sandy swamps, N. J. Sept. 



10 S. serdtinus Torr. Culm 12 — 18' high, filiform, compressed, growing in 

 patches, smooth, often viviparous at the nodes; Ivs. 2 — 3' by ■}", keeled, smooth; 

 sheaths open; stip. ovate, short; panicle 3 — 10' long, capillary, diffuse, branches 

 flexuous, alternate; spikelets elhptical, scarcely J" long; glume ovate, 1-veined, 

 unequal, half the length of the palese ; paleae smooth, the lower one shorter ; sta. 3. 

 — Long Island (Kueiskern) to Me. and Mich. July. (Vilfa, Torr. Poa modesta 

 Tuckm.) 



6. CIN'NA, L. Sweet Reed Grass. Spikelets 1-flowered, com- 

 pressed ; glumes 2, subequal, without awns, upper one 3-veined.; palese 

 2, naked at base, on short stipes, lower one larger, enclosing the upper, 

 with a short awn a little below the tip ; stamen 1 ; grain oblong, free. 

 — 2C Erect, simple, tall, with a large panicle. 



1 C. pendula Trin. Culm smooth, 3 — Sfhigh; Ivs. linear-lanceolate, 12 — 18' Dy 

 3 — 5", pale green, rough-edged, with smooth, striate sheaths ; stip. long, lacerated; 

 panicle white-green, near a foot in length, rather attenuated above and nodding, 

 with (lie brcmches capillary, drooping, and arranged somewhat in 43 ; glwmes 2" 

 long, linear-lanceolate ; lower palece with a short straight own a little below the 

 tip. — 11 A beautiful grass, sought by cattle, in rich, shady soils, N. States 

 and Can. 



2 C. aruudinkcea Wind. Culm and leaves as in No. 1. Plant bright green; 

 panicle purple and green, erect and with ascending or erect branches which are 

 lioriferous more than half their length ; gl/wmes 3" long, lanceolate, lower patets 

 awnless or the awn scarcely equaling the oUuse point — U. S., in shady woods, 

 chiefly southward. A finer looking grass than the preceding. Jl., Aug. 



7. MUHLENBER'GIA, Schreber. Drop-seed Grass. (In honor of 

 Henry Muhlenberg, D.D., an eminent American botanist.) — Spikelets 

 1-flowered, fl. sessile in the glumes and mostly bearded at the base ; 

 glumes 2, unequal, shorter than the pales, acute or awned, sometimes 

 minute, the lower rarely obsolete ; pales 2, the lower awned or muoron- 

 ate at apex, upper 2-keeled ; stam. 3 — 2 ; stig. 2, plumous ; caryopsis 

 free. — Culms often branched. Panicles simple, mostly contracted. 



§ MmiLENiimoiA. Ghimos mnnifest. Panicles slender, terminal and lateral. (») 



* Glumes awned and twice longer than the awnless paleie No. 1 



* Glumes pointed, not longer than— the mucronate paleffi. . .■ Nos. 2, 8 



„_ ^, — the long-awned paloiB Nos. 4, 5 



S BEAonTEi.YTi!irM. Glumes mlnuto, the lowor obsolete. Panicle slender Nos 6 I 



§ TMoaooHLOX. Glumes small, both present. Panicle diffuse, capillary Uo! 8 



1 M. glomerkta Trin. Glaucous; culm, compressed, erect, smooth, with ap- 

 preased branches or subsimple, 1^ — 4f high,; Ivs; somewhat 2-rowed, erect, flat, 

 rough, 3—5' long, with closed sheaths ; panicle apioate, dense, conglomeratfed, in- 



