+ 
52 | TRIANDRIA. MONOGYNIA. 
(or united near the base). In most of the species the 
awn is geniculated or bent at an obtuse angle. = 
Spxcres. 1. pratensis. (Naturalized; frequently assuming? 
the decumbent habit of 1. geniciulatus. According to Des- 
fontaines this species is subject to the parasitic affection of 
microscopic fungi, called in France Ergot.) 2. subarista- 
tust Mica. 
Nearly all the genuine species of this genus are con- 
fined to Europe, also extending into Barbary in Afri- 
ea. There are 10 species described, of which there are 2 
at Sod Cape of Good Hope, and 1 at the straights of Ma- 
ge 
79. PANICUM. L. (Panick-grass.) 
Calix 3-valved, exterior valve often very 
_ small, 1-flowered, (mostly with the rudiments 
_ Of a sessile, neutral or masculine floret.) Corol- 
_ fa (hermaphrodite) 2-valved, cartilaginous and 
_ ~persistent. 
___ Flowers densely or loosely paniculate, the panicle some+ 
- times recemosely divided, with lateral conglomerations up- 
~~ OManangular rachis, but forihe most part diffuse or 
~ ing, pyramidal, divaricate, or dichotomous, every where 
: terminated by single flowers, approximating by pairs. In | 
_ Many species, the accessory, now considered the outer 
~ glume of the proper calix, is very minute, in these spe- 
“= ‘ies the calix is often oval, or obovate, pubescent, with 
~~ the imperfect flower always destitute of sexual rudi- 
ments, and the panicle divaricate. Some other species 
7 Culm about a foot high, and as well as the sheathes 
glaucous, repent at the base, or geniculate. Leates smooth, 2 
or Sinches long on the culm; stipula elongated, semicylindric, 
Spike 1 to 2 inches long, somewhat attenuated above, cy- 
indric, a little lobed or divided near the base. Flowers ovate . 
obtuse, a little dilated. Calix connate at the base, conspicu- 
ciliate on the carina and margins. Corolla obtuse, 
dged with green as well as the calix; awn a little 
cserted, straight, originating somewhat below the middle of 
the valve. Stigmata white, liform, exserted more than the 
len — ete scarcely plumose. : 
_.. In the waters and ont © Margins of ponds, in Upper Canada. 
RoC In news es 5 near Philadephis ‘Neary allied 
to A. geniculatus, but the Hower | not awned from the base, 
and ie awn mes Sight. os ce — 
= ee 
