554 GRAMINEJE. (GRASS FAMILY.) 



1. Cw. S'iiceiliostss, Beauv. Culms clustered from a short rootstock (1° 

 high), wiry, leaf}- ; leaves oblong-lanceolate ; sjiikcs flower-bearing to the base 

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

 equalling the pointed glumes, not more than half the length of the awn of the fer- 

 tile flower. lj. (Anthopogon lepturoides, Nult.) — Sandy pine barrens, New 

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



2. C«. I>a'eviif6 Basis, Trin. Filiform spikes long-peduncled, i. e. flower-bear- 

 ing only above the middle ; lower palea filiate near the base, short-awned ; awn 

 of the abortive flower obsolete or minute; glumes acute, y. (Anthopogon brevifo- 

 lius & filifonnis, Nult.) — Sussex County, Delaware, and southward. 



20. CYNODON, Richard. Bermuda Grass. Scutch-Grass. 



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

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

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

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

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

 short flattish leaves. (Name composed of kvwv, a dog, and 68ovs, a tooth.) 



1. C. DActylon, Pers. Spikes 3-5; palese smooth, longer than the blunt 

 rudiment. — Pcnn. and southward; troublesome in light soil. (Nat. from Eu.} 



21. DACTYLOCTMH'l, 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 SciktvXos, finger, and Kreviov, a little comb, 

 alluding to the digitate and pectinate spikes.) 



1. U. iEGYPTiACUM, Willd. Spikes 4-5; leaves eiliate at the base, (l) 

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

 and southward. (Adv. from Afr. 1) 



22. EJLEUSIUfE, Gaertn. Crab-Grass. Yard-Grass. 



Spikelets 2-6-flowered, with a terminal naked rudiment, closely imbricate- 

 spiked on one side of a flattish rhachis ; the spikes digitate. Glumes membra- 

 naceous, pointless, shorter than the flowers. Palea; awnless and pointless ; the 

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

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

 flowers much as in Poa. (Name from 'EAeucra/, the town where Ceres, the god- 

 dess of harvests, was worshipped.) 



1. E. Indica, Gaertn. (Dog's-tail or Wire Grass.) Culms ascend* 

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

 (Nat. fromlnd.?) 



