Brachypodium. | LXXXIX. GRAMINES. 529 
1, B. sylvaticum, Beauv. (fig. 1213). Slender False-Brome.—A 
rather slender, erect Grass, 2 to 3 feet high, with a perennial tuft, and 
slightly creeping rootstock. Leaves flat, and rather long. Spikelets 
usually 6 or 7 in a loose spike, more or less drooping, or rarely erect, each 
one attaining an inch or even more in length, nearly cylindrical when 
young, and flattened when in fruit, containing from 8 to twice that number 
of flowers. Glumes glabrous or pubescent, the outer ones pointed, the 
flowering ones ending in an awn usually as long as or longer than the 
glume itself. Palea fringed with a few hairs on the edges, 
In woods, hedges, and thickets, throughout Europe, and central and 
Russian Asia, except the extreme north, also found in the Western Himalaya. 
Common in Britain. 7. summer. 
2, B. pinnatum, Linn. (fig. 1214). Heath False-Brome.— Perhaps a 
mere variety of B. sylvaticum growing in more open situations. The root- 
stock 1s more creeping, the spikelets more erect, the flowering glumes 
rather smaller, and more open, and the awn is very much shorter. 
In pastures and stony wastes, with nearly the same geographical range 
as B. sylvaticum, but not extending so far north, nor into the Himalaya, 
and more common in southern and eastern Europe. In Britain, scattered 
over the eastern and central counties of England, but unknown in Scotland 
and Ireland. #7. summer. 
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XXX. BROMUS. BROME. 
Spikelets several-flowered, rather large, erect or drooping, in a branched, 
loose or compact panicle. Outer glumes unequal, usually keeled and awn- 
less. Flowering glumes longer, rounded on the back, scarious at the edges, 
with an awn inserted just below the notched or cleft summit, Palea ciliate 
on the nerves. Ovary usually hairy, the style inserted on one side of the 
summit. 
A considerable genus, widely spread over the northern hemisphere, 
chiefly in the old world, with a few American or southern species, It is 
also a natural one if made to include B. giganteus, referred by some to 
Festuca on account of the glabrous ovary and more central style. By 
others the species here included are distributed into two, three, or four 
distinct genera. 
Flowering glumes oblong, turgid. Outer ones distinctly nerved 6. B. arvensis, 
Flowering glumes narrow-lanceolate. Outer ones obscurely 
nerved. 
Flowering glumes about 3 lines long. Ovary glabrous . . 7 B. giganteus, 
Flowering glumes 5 lines long or more. Ovary hairy. 
Awns shorter or not longer than the glumes. Leaf-sheaths 
with long hairs. 
Panicle loose and drooping . ° - 3 ' : 
Panicle compact and erect : é : : : : 
Awns longer than the glumes. Leaves softly downy or 
glabrous. : 
Panicle loose and drooping. 5 ‘ 8 R ‘ . 3&3 B. sterilis. 
Panicle compact and erect. 
Spikelets, together with the awns, more than 3 inches 
long ‘ . . : : : ; é : : . 4 B. maximus, 
Spikelets with the awns not 2 inches long . : . . 5. B. madritensis. 
1, B. erectus, Huds. (fig. 1215). Upright Brome.—An erect peren- 
nial, 2 feet high or more, with a slightly creeping rootstock. Leaves 
Mm 
ke bo 
. B. asper. 
. B. erectus. 
