vit] FLORAL CHARACTERS 101 
Species of Lagurus, Polypogon, Phalaris (not truly awned), 
Panicum (with bristles between the spikelets), and Gastridium are 
other British grasses approaching this type of inflorescence: they 
are all rare or very local. 
Sesleria has an ovoid spike, but the spikelets are two-flowered 
and not truly awned. 
Keleria may present resemblances, but the spikelets are very 
different in detail (see p. 109). 
(i) Awns inserted into the back of the single 
palea, and hair-like. Glumes connate below, 
keeled. Only one palea. 
Alopecurus. 
Annual corn-weed, with a long and slender 
spike, pointed above. Glumes almost glabrous, 
and connate to the middle. 
A. agrestis, L. 
** Perennials, with shorter and stouter spikes, 
rounded above. Glumes connate at the base 
only, and obviously hairy on the keel. 
+t  Procumbent and kneed at the nodes below. 
Spike 1—2 inches long. In marshy places. 
A. geniculatus, L. 
tt A meadow-grass, with erect stems, and spikes 
2—3 inches or more and stouter. 
A. pratensis, L. 
The rare A. alpinus, Sm. with short ovoid spikes, about one inch 
long, only occurs in the Highlands. 
(11) Awns, when present, merely the stuff, pointed 
termination of the keel. Glumes free below. 
Palee two. 
