72 
~ ¢umbens and Avena calycina, of Europe. 
TRIANDRIA. DIGYNIA. 
Avena spicata, ELL10 TT, p. 174. ; 
Culm erect, often more than 2 feet high, nodes distant. 
Leaves short, flat, and subulate, smooth or pubescent on 
the under side; sheath very long, sometimes hairy: st- 
pules a minute, silky fringe, with 2 lateral hairy tufts, 
Panicle 2 or 3 mches long, branches several, (3 or 4) 2 
and 3-flowered. Calix striate, scariose (as in Avena), lon- 
ger than the spikelet. Corolla, dorsal valve oblong-lanceo- 
late, with a long shining villus particularly conspicuous 
along the margin, terminating in 2 setaceous points nearly 
its length, awn contorted, and discoloured at the base, 
more than twice the length of the valve, and (seen through 
aliens) scabrous; inner valve about L-./f the length of the 
outer, distinctly ciliate as in Bromus. : 
From Carolina to Florida. Closely allied but yery dis- 
tinct from D- spicata, particularly in the panicle, and the 
conspicuous silky villus of the corolla, as well as theform 
and proportion of the valves. ‘These 2 species are scaTce- 
ly congeners with the Danthonia decumbens; they appeal _ 
to form a distinct genus, approximating to Bromus. 
Yo this genus are referred by Decandolle Festwea de 
at 
i 
_ 101. FESTUCA, L. (Fescue-grass.) 
Calix 2-valved, many-flowered, Spikelets 
compressed, distichal, acute at either extremi- 
_ ty. Unter valve of the corolla entire, generally 
~ terminating in an awn. + Seed growing to the 
corolla.” ScHRADER. 
Culm paniculate, rigid, or flexuose and expanding, 
spikelets erect. or nodding; flowers sometimes awnless, 
mostly terete, inner valve of the corolla with a smoot 
“margin. Nectarium “ of 2 ovate-lanceolate acute leaflets, 
gibbous at their base, or of 1 rather concave horizon 
notched leaf?’ Scureper. Seed oblong, slender, acute at 
_ each end, marked with a longitudinal furrow. — erate 
Species. 1. spicata. Panicle spiked after the manner 
of Uniola spicata, to which it is nearly related, spikelets _ 
rather large, about 5-flowered: glumes of the calx-and 
