1X | “ SEEDS ” 167 
flattened in the antero-posterior plane, and usually shines through 
the closely investing palea. A rachilla is visible. In Brachypodium 
the caryopsis is less flattened, and the apex tapers into the awn 
Fig. 73. Bromus arvensis, var. Fig. 74. Bromus arvensis, var. 
mollis. a, “seed,” nat. size; secalinus. a, spikelet, b and 
b and c, the ‘same, x3. d, c, ‘‘ seed,” nat. size; d and e, 
caryopsis, x about 3. The awn the same, x6. Nobbe. Cf. 
originates between two teeth Fig. 73. 
of the strongly ribbed palea. 
Coracle-shaped type. Nobbe. 
without teeth. In Lolium and Agropyrum the caryopsis is still 
more wheat-like and grooved. 
All our Bromes are weeds, but some of them are important 
adulterants, requiring careful examination. 
B. inermis is cultivated, and is a valuable grass. Awn short or 
wanting. Pale strongly 5—7 ribbed, inner with a marked central 
rib, closely adhering to caryopsis. 
B. Schraderi is also said to be valuable. 
t+ Caryopsis not thin and flattened, corn-like, 
35—5 mm. Palea smooth, inflated, boat-like. 
Lolium temulentwm. 
