vil] FLORAL CHARACTERS 107 
The variety A. juncewm found as a sand-binder on sea-coasts 
is glaucous, stiffer, with sharply pointed leaves, and blunt glumes. 
For other sand-binders see note, p. 102. 
** Not creeping. Awns long and prominent. 
A. caninum, Beauv. 
(ii) The rounded backs of the glumes are next the rachis. 
* Spikelets flat and closely sessile in the notches 
of the rachis. 
Lolium. 
+t  <Awnless or nearly so. Perennial. 
L. perenne, L. 
++ With conspicuous awns. Annual, not common. 
L. temulentum, L. 
There are several cultivated varieties of LZ. perenne: L. temu- 
lentum is notoriously poisonous (see note, p. 168). The lowermost 
glume of each spikelet is often alone developed or conspicuous, and 
looks like a bract in the axis of which the spikelet sits. 
** Spikelets elongated and hardly flattened, and 
not quite sessile, especially the lower: rachis 
scarcely notched, the spikelets with their sides 
(edges of glumes) neat the axvs. 
Brachypodium. 
+ A shade-grass with long, conspicuous awns to the 
more or less drooping spikelets. Common. 
B. sylvaticum, Beauv. 
++ Growing in the open. Spikelets stouter, stiffer 
and more erect, with short awns. Not common. 
B. pinnatum, L. 
Brachypodium may easily be confounded with Bromus, but the 
spikelets are nearly sessile: their shape and the absence of con- 
spicuous notches distinguish this genus from Agropyrum. Loliwm 
