804 Oedbr 156.— GRAMINB^. 



glumes linear, pungent ; awn of the fi. 3 to 4 times its length, that of the rudi- 

 ment half as long. — U Sandy fields, N. J. to Ga. and La. 

 2 G-. brevifolium Trin. Culm slender, decumbent below, ascending 8 to 16' ; 

 intemodes short (1'), sheaths about as long, smooth ; Ivs. linear-lanceolate, 1 to 

 2', Tery acute ; spikes almost hair-like, somewhat corymbed, flowering only above 

 the middle ; glumes subulate ; awn of the flower as long as the pale, that of the ru- 

 diment wanting. — 2f Md. to La. (Hale). 



55. MANISU^RUS, L. Lizzard-tail Grass. (Gr. juavtf, lizard, ovpa, 

 tail.) Spkl. in pairs, 1-flowered, the lower ^ , upper abortive ; ^ gl. 2, 

 the lower roundish, saccate-concave, coriaceous, larger than the flattish, 

 membranous upper gl. ; pales 2, much smaller than the glumes, thinly 

 membranous ; stam. 3 ; styles 2 ; abortive spkl. of merely 2 empty, 

 subequal, subcoriaceous gluihes. — ® 



M. granulans Swtz. Culm 2f or more, erect, branching, with hairy sheaths; 

 leaves flat, 1 to 4' in length; spilces solitary, on short, lateral branches, partly 

 involved in a spath-form lea^ jointed, unilateral, ^ to 1' long, colored ; g fls. 

 globular, the gl. warty-tesselated. — About Charleston, S. C. (Bachman I). § B. 

 lad. 



56. CYN'ODON, Rich. Bermuda Grass. (Gr. kvuv, a dog, oiJof, ^ 

 tooth ; alluding to the singular one-sided spikelets.) Spikes digitate or 

 fasciculate ; spikes unilateral, in a single row, 1-flowered, with a rudi-. 

 ment, glumes membranaceous, shorter than the flowers, persistent ; ^ 

 upper palea bifid-toothed ; rudiment minute, pedicellate, in a groove of 

 the upper palea ; scales truncate. 



C Dactylon Pers. Culm creeping extensively; stoloniferoua at base, 6' tq 

 2f long ; Ivs. hairy on the margin and towards the base, narrow-linear ; sheaths 

 liairy; spikes 4 — 5, digitate, spreading, 2 — 3' long, 1'' wide, serrated with thq 

 uneven spikelets ; glumes scabrous on the keel, lanceolate, acute ; palese subequal, 

 the lower broader, enfolding the upper. — If A vigorous creeper, in sands and hard 

 soils, Penn. to the Gulf y 



57. EU^STACHYS, Desv. Sea-side Finger-grass. (Gr. ev, well, 

 ardxvg, A TOW.) Spikes digitate; spkl. sessile on one side of the rachis, 

 2-flowered ; upper fl. sterile ; upper gl. larger, short-awned at the 2- 

 lobed apex ; lower pale thin, keeled, mucronate below the tip. — 2[ Culm 

 creeping, compressed. Lvs. flat. 



E. petreea Desv. Diffusely branched ; rooting at the joints ; lvs. linear, ob- 

 tuse, rough-edged, 2 — 4' ; sheaths compressed, keeled, serrulate on the keel ; 

 longer than the joints ; spikes strict, erect, fascicled, 4 to 6 ; lower 5 pale coria- 

 ceous, brown, silky-ciliate on the keel below and margins above, the midvein 

 extended into a short subterminal awn.— Brackish soils, S. Car., Ga. (Bachmanl. 

 Jn.— Aug. (Chloris, EU.) 



58. ELEUSFNE. (From Meusis, where Ceres, the goddess of har- 

 vests, was worshipped.) Spikes digitate, unilateral ; spikelets 5 — 7- 

 flowered ; glumes obtuse, unequal, lower one smaller ; palese unequal, 

 upper one bifid toothed ; scale truncate, fimbriate ; caryopsis triangu- 

 lar, ovate, enclosed in a separate membrane or perigynium. 



E. Indica L. Culm oblique, compressed, procumbent and branching at base, 12 — 

 16' long ; lvs. Unear, somewhat hairy, on smooth, loose sheaths hairy at the throat ; 

 spikes 2 — 4, rarely more or less, linear, straight divaricate, 2 — 4' long ; 2" wide ; 

 spikelets closely imbricate, smooth ; upper glume 5-veined ; fr. dark brown. — d 

 Oommon about houses, foot-paths, &a Mid. and "W. States. Aug. 



59. DACTYLOCTE^NIUM, Willd. Egyptian Grass. (Gr. (JoKTvAof , 

 finger, icreviov, a small comb ; sc. spikes digitate, pectinate.) Spikelets 



