654 GRAMINE^. (grass FAMILY.) 



1. G. racemusus, Beauv. Culms clastered from a short rootstock (1° 

 high), wiry, leafy; leaves oblong-lanceolate; spikes flower-hearing to the base 

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

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

 tile flower. 1|. (Anthopogon lepturoides, Nutt.) — Sandy pine barrens. New 

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



2. C ItrevifoIiUS, Trin. 'Filiiorm spikes hng-pedmcled, i. e. flower-bear- 

 ing only above the middle ; lower palea ciliate near the base, short-awned ; aum 

 of the abortive flower obsolete or minute; glumes acute. 1). (Anthopogon brevifo- 

 lius & filiformis, Nutt.) — Sussex County, Delaware, and southward. 



20. Ci'IVODON, Richard. Bekmuda Gkass. Scutch-Gkass. 



Spikelets 1-flowered, with a mere naked short-pedicelled nidiment 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. Palese pointless and awnless ; the lower larger, boa^shaped. 

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

 short flattish leaves. (Name composed of kviov, a dog, and oSous, a tooth. ) 



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

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



iJl. BACTYIiOCTENIUM, WiUd. Egyptian Geass. 



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 SoktuXos, finger, and ktcviov, a little comb, 

 alluding to the digitate and pectinate spikes.) 



1. D. JEgtptIacum, "Willd. Spikes 4-5; leaves eiliatc at the base. ® 

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

 and southward. (Adv. from Afr. ■?) 



22. EliEUSINE, Gajrtn. Ckab-Gra38. 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. Paleas 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 'EXcutriV, the town where Ceres, the god- 

 dess of harvests, was worshipped.) 



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

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

 (Nat. from Ind.?) 



