34 Mr. Woops on the Genera of European Grasses. 
3. Phragmites. Spicule many-flowered, the lowermost imperfect and not 
covered with hairs. Glumes membranous, the outer much the smallest. 
Pale scariose, unarmed. Panicle diffuse. 
4. Ampelodesmus. Spicule many-flowered, the lowermost perfect, unless when 
the inner glume is changed into an imperfect floret. Glumes not opposite, 
the outer rather the smallest, membrano-scariose. Paleze membranous. 
Awn subterminal. Seed crested. Panicle diffuse. 
It would appear from the above descriptions that the paleæ in AMMOPHILA 
and AMPELODESMUS are firmer than the glumes. In Phragmites the glumes 
are the firmest; in ARUNDO they are about of equal consistency, or the paleae 
are the firmest. Arundo is variously awned : the awn is said to be sometimes 
wanting in A. tenella; A. Donax has no awn, but a distinct seta continued 
from the midrib between the two subulate points of the outer palea. In 
A. Plinii and A. mauritanica the outer 
palea gradually tapers into a long 
point. PHRAGMITES has no awn. 
Palisot de Beauvois has drawn three stigmas to AMMOPHILA, 
a mistake; and he has some confusion in his account of Dona 
unravel, the plates not agreeing with the letter-press. 
but this must be 
x which I cannot 
CHLORIDES. 
The European genera of this tribe are few, and are easily known by their 
inflorescence, the spiculæ being pla 
pr ow ced in two rows on one side of a flattened 
em without any tendency to form an imperfect exterior floret. "There is 
Sometimes only one floret, with an interior, stalk-like rudiment, and sometimes 
Kunth adds, that th ior i i 
à : 2 € Superior is the exterior 
i : e M 3 him aright, there are few Grasses in which it can 
„ ise ae is not the case. This I have aiready stated in the pre- 
ry o vations. I may ad : | 
Y add, that in the Chloride the glumes and paleæ 
the thinnest, and that, in 
or the latter rather 
Hough there is in some instances something of a 
te OF the midrib, there is no awn. The genera 
1. Cynodon. = Sn 
— — Spiculze 1-flowered, with an interior rudiment. 
