554 GRAMINE^E. (GRASS FAMILY.) 



1. Cr. raceiiiOSUS, Bcauv. Culms cl istered from a short rootstock (1* 

 high), wiry, leafy; leaves oblong-lanceolate; spikes Jlower-l>eariny to the bos* 

 (5' -8' long), soon divergent; awn of the abortive flower shorter than its stalk, 

 equalling the pointed ylumcs, not more than half the length of the wn of the fer- 

 tile flower. Ij. (Anthopogon lepturoides, Nutt.) Sandy pine barrens, New 

 Jersey to Virginia, and southward. Aug., Sept. 



2. O. brevifolillS, Trin. Filiform spikes long-pedunded, i. e. flov;er-bear- 

 iiKj only above the middle; lower palca ciliate near the base, short-awned ; awn 

 o/' the a'onrtiri' j!v/c< r obsolete or minute ; yhunes acute. 1J. (Anthopogon brevifo- 

 lius & liliformis, Nutt.) Sussex County, Delaware, and southward. 



2O. CVNODON, Richard. BERMUDA GRASS. SCUTCH-GRASS. 



Spikelets 1 -flowered, with a mere naked short-pedicelled rudiment of a second 

 flower, imbricate-spiked on one side of a flatfish rhachis ; the spikes usually 

 digitate at the naked summit of the flowering culms. Glumes keeled, pointless, 

 rather unequal. Paleae pointless and awnless ; the lower larger, boat-shaped. 

 Stamens 3. Low diffusely-branched and extensively creeping perennials, with 

 short flattish leaves. (Name composed of KVCOI/, a tloy, and oSovs, a tooth.) 



1. C. DACTYLON, Pers. Spikes 3-5; paleae smooth, longer than the blunt 

 rudiment. Penn. and southward; troublesome in light soil. (Nat. from Eu.) 



21. DACTYL.OCTEJVIUM, Willd. EGYPTIAN GRASS. 



Spikelets several-flowered, with the uppermost flower imperfect, crowded on 

 one side of a flattened rhachis, forming dense pectinate spikes, 2-5 in number, 

 digitate at the summit of the culm. Glumes compressed laterally and keeled, 

 membranaceous, the upper (exterior) one awn-pointed. Lower palea strongly 

 keeled and boat-shaped, pointed. Stamens 3. Pericarp a thin utricle, contain- 

 ing a loose globular and rough-wrinkled seed. Culms diffuse, often creeping 

 at the base. (Name compounded of fiuKrvAos. Jinyer, and KTCVLOV, a little contb t 

 alluding to the digitate and peetinate spikes.) 



1. I>. ^GYPT!ACUM, Willd. Spikes 4- 5; leaves ciliate at the base. (J) 

 (Chloris mucronata, Michx.) r Cultivated fields and yards, Virginia, Illinois, 

 and southward. (Adv. from Afr. ?) 



22. EL.EUSINE, Grcrtn. CRAB-GRASS. YARD-GRASS. 



Spikelets 2 - G-flowcrcd, with a terminal naked rudiment, closely imbricate- 

 gpikcd on one side of a flattish rhachis ; the spikes digitate. Glumes memblU- 

 naccous, pointless, shorter than the flowers. Paleaj awnless and pointless ; the 

 lower ovat:', keeled, larger than the upper. Stamens 3. Pericarp (utricle) con- 

 taining a loose oval and wrinkled seed. Low annuals, with flat leaves, and 

 tnn.'h '- in I >( "i- (Name from 'EXfumV, the town where Ceres, the god- 

 harvests, was worshipped.) 



1. E. INDICA, Gu?r f n. (DO<;'S-TAIL or WIRK GRASS.: Culms ascend 

 ing, flattened ; spikes 2-5 (2 f long, greenish). Yards, &c., .'.hiefiy southward 

 (Nat. from Ind. ?) 



