142 CLASSIFICATION OF [CH. 
Palea inflated, round-backed and somewhat 
winged, membranous. 
Briza media. 
B. minor. 
Briza media, L. 
Palee blunt, 2°5—3mm., without lateral projections, 
markedly convex—almost conduplicate; nerves several. 
Caryopsis ovoid, 1:5—2°5 mm., dark brown. 
Sometimes called a good grass, but meagre and only found in 
poor meadows in this country. 
It should perhaps go with the “ Millet-seed” type and should be 
compared with Phlewm, Melica, Panicum, &c. “Seed” seldom met 
with. 
B. minor is smaller. 
** Palez not inflated or winged. 
t  Palee broad, flat and truncate, prominently three- 
ribbed. Caryopsis 2 mm. long. 
Catabrosa aquatica, Beauv. 
Cattle like it, but it only grows in ditches &c. in water-meadows : 
distinction from Glyceria aquatica easy if the palez are examined. 
tt Palee acute or sub-acute, boat-shaped. 
© Pale and “seed” at least 6—8 mm. long. 
= Rachilla flattened or angular, and tapering 
below. 
Lolium perenne. 
Occasionally awned, and then less easily distinguished from 
L. temulentum. One of our most valuable grasses. It forms a 
distinct type of boat-shaped “seeds.” 
Lolwum perenne, L. (Fig. 57). 
Palea distinctly five-ribbed, glabrous, oblong-lanceolate, 
obtuse or sub-acute, awnless, about 7mm. long. Margins 
