476 
corn, and is used as liay,* being about the only kind of hay used in 
some districts. Though we regard it as a coarse weed, it is sometimes 
cultivated in Europe, the seeds being used, like millet, as a substitute for 
sago and rice.f It has been accused of being the cause of the disease in 
horses called “ slobbers,” but with how much truth I cannot say. In 
this State where the crab-grass has but recently shown itself, and where 
it has spread but little, it is quite certain that horses are not much 
afflicted with this troublesome complaint. Should it prove to be a just 
charge against this grass, it would be well, as far as possible, to prevent 
its spread in our State. 
121. Panicum Glabrum. Gaudin. 
Syn. —Digitaria glabra, Roem. Schultz. D. liumifusa, Pers. D. ischae- 
mum, Schreb. 
Culms smooth, procumbent and spreading, rarely rooting; spikes 2, 
somewhat alternate-clustered; upper glume nearly as long as the flower. 
Annual; flowers in August. Culms 1 to 2 feet high. Introduced from 
Europe ; Illinois and Ohio. 
\ , . t r .; . „ 
122. Panicum Filiforme. Zinnceus. 
Syn. —Digitaria filiformis, Beauv. Paspalum filiforme, Flugge. 
Culms erect, very slender ; spikes 2 to 8, filiform, alternate and ap¬ 
proximated, thread-like ; lower glume wanting ; leaves narrow ; spike- 
lets all distinctly pedicelled, oblong acute. Annual ; flowers in August. 
Culms 1 to 2 feet high. Ohio—Mr. Wm. S. Sullivant. 
§ 2. Spikelets scattered in loose panicles, awnless. 
123. Panicum Agrostoides. Sprengel. 
Syn. —P. elongatum, Ph. P. agrostidiforme, Lam. 
Culms compressed, upright; leaves elongated ; panicle pyramidal ; 
spikelets ovate-oblong, acute; upper glume five-nerved ; leaves long, 
and with the sheaths smooth. Perennial; flowers in July. Culms 1 to 
3 feet high. Minnesota—(Long’s Expedition). Also in Illnois—Dr. C. 
W. Short. 
* Patent Office Report, 1849 and ’50, p. 15C. 
t Loudon—Enc. of Agriculture, p. 763. 
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