LOLIUM.—ELYMUS. 401 
st. rough.—E. B. 2267.—“ On steep banks and rocks by the sea- 
side between Arbroath and Montrose.” Mr. G. Don. P. VII.]  S. 
46. Lotium Linn. 
1. L. perenne (L.); spikelets 3—11-flowered, gl. equalling the 
lowermost floret, outer pale usually awnless, root producing leafy 
barren shoots, margins of young l. simply folded—E. B. 315. 
P. 65.—St. 1—1} foot high, usually bent at the lower knots. 
Whole plant rather dark green.—f. aristatum; outer pale with 
a long awn.—y. L. tenue (L.); spikelets few-flowered, 1. slender. 
—Sometimes the spikelets becomes converted into branches ; 
occasionally the rachis is so much shortened as to form a broad 
ovate close distichous spike—Common. P. VI. Rye-grass. 
*2. L. italicum (A. Braun); spikelets 9—14-flowered, outer 
pale with a long awn, root with leafy barren shoots, margins of 
the young 1. involute.—L. perenne (several varieties) P. 138—141. 
L. multiflorum H. and A. (not Lam.).—St. numerous, straight, 
in close tufts, 14—3 feet high. Number of fl. variable. Whole 
plant, especially the spikelets, paler in colour than the preceding. 
Ligule short, abrupt.—[Probably the true L. multiflorum (Lam.) 
is confounded with this in Britain ; it has no barren shoots and 
is annual.|—In cultivated fields. B. or P. VI. Italian Rye- 
gTass. E. S. 
3. L. linicola (Sond.); spikelets 7—11-flowered exceeding the 
gl., outer pale longer than its awn or awnless, no barren shoots. 
—E, B. 2955.—St. erect. Outer pale cartilagenous below, nar- 
rower than the inner, tumid in fruit.—Cultivated fields. Hurst- 
pierpoint, Sussex. Catterick Bridge, Yorkshire. A. VI. “a 
4. L. temulentum (L.); spikelets about 6-flowered equalling or 
shorter than the glume, outer pale as long as its awn, no barren 
shoots. —E. B. 1124. P. 142.—St. erect. Ligule short. Inner 
glume usually present, often bifid —f. L. arvense (With.); fl. 
4—5 without or with short awns. E. B. 1125.—Cultivated fields. 
A. VI—VIII. Darvel. 
47. Exymus Linn. 
1. E. arenarius (L.); spike upright close, rachis flat not winged, 
gi. lanceolate downy not longer than the spikelets.—E. B. 1672. 
P. 64.—Closely resembling Psamma arenaria, but readily dis- 
tinguished by its broad |. and short ligule. St. 3—4 feet high. 
—Sandy sea-shores. P. VII. 
2. E. geniculatus (Curt.); spike lax bent downwards, rachis 
winged, glumes awlshaped glabrous longer than the spikelet.— 
E.B. 1586. P. 131.—St. 3—4 feet high. Spike 1—2 feet long, 
