148 CLASSIFICATION OF [CH. 
Cynosurus cristatus, L. (Fig. 60). 
Palea canary yellow to light-brown, lanceolate with 
rounded back and the mid-rib prom1- 
nent as a slight keel and margins in- 
folded, about 4 mm. long (varies from 
3—4°5 x 0°5 to 1 mm. broad), scabrid 
above, dotted below and acute to 
acuminate with a scabrid awn-point, 
often curved. Caryopsis 2—2°3 mm., 
somewhat flattened. Rachilla short 
and smooth, dilated above. Fig. 60. Cynosurus 
cristatus. a, ‘**seed”’ 
A valuable and easily recognised grass. and caryopsis, nat. 
Molinia, Holcus and similar impurities are size; bande, ‘‘seed”’ 
easily detected : some Fescues are much x about 8. Note the 
scabrid and slightly 
curved awn-point. 
Nobbe. Cf. Fig. 64. 
more like it; e.g. /. tenuifolia (see p. 46) in 
which the apex tapers suddenly to a point. 
Dactylis should also be compared. 
tt Paleze compressed or distinctly keeled. 
Molinia cerulea. 
Keleria cristata. 
Unimportant, except as impurities among other grass “seeds.” 
Molinia is said to occur as such in samples of Cynosurus, Dactylis, 
Poa trivialis, Fescues, &c., but it should give little difficulty except 
in comparison with Glyceria (see p. 146). 
Molinia cerulea (Mcench.) (Fig. 61). 
“Seed” 3—4mm. or more, leather coloured or with a 
bluish tinge. Palez divaricating, the lower keeled and 
compressed, and tapering to a sharp point. Rachilla long, 
oblique and prominent. Smooth tapering, palea 5°5, fruit 
2 mm. long. 
