27. 
26, 
25. 
30. 
31. 
32. 
49. 
48. 
16. 
Mr. Woobs on the Genera of European Grasses, 55 
Vilfa. Glumes membranous, unequal, not exceeding the pale. Palew 
membranous, unarmed. 
Agrostis. Glumes membranous, including. Pale unequal, smooth, not 
hardening upon the seed. Awn, if any, fine, dorsal. 
. Knappia. Palez scariose, shaggy, truncate, the inner minute or wanting. 
Spiculæ in a raceme, obscurely 2-rowed. Rachis cylindrical. 
. Polypogon. Glume furnished with a long slender seta! scariose, inclu- 
ding. Paleæ scariose; the outer with a dorsal awn. 
Milium. Glumes herbaceo-scariose. Paleæ membrano-coriaceous, nearly 
equal, unarmed, hardening on the seed. 
Piptatherum. Glumes membranous. Floret sessile. Paleæ subcoriaceous, 
joined to a straight terminal awn, hardening on the seed. 
Stipa. Glumes scariose, herbaceous at the base. Floret stalked. Palew 
coriaceous, hardening on the seed, a geniculate and twisted dorsal awn 
joined to its extremity. 
Achnatherum. Glumes scariose, herbaceous at the base. Paleæ mem- 
branous. Awn geniculate and twisted, with a distinct though slightly 
marked joining on to the outer palea, at which it readily breaks of. 
L. Spiculæ in a loose panicle, with a second imperfect floret. 
Holcus. Lower floret perfect, unarmed. Upper generally barren, awned. 
Arrhenatherum. Lower floret barren, with a geniculate awn; upper per 
fect, with a short straight awn. 
Hierochloe. Two outer florets barren; middle perfect, diandrous, all 
unarmed. 
Melica uniflora, 
M. Spiculæ scattered, with more than one perfect floret. 
N.B. In these genera, Aira, Deschampsia, Danthonia, and Avena are mostly 
awned, the awn easily breaking away from the palea. Thes are never fur- 
nished with a seta forming a mere continuation of the midrib. In a 
and Keleria it is rather difficult to decide whether we find an T" or à E 
In the first of these genera it has more the character of the first 7 2 
of the latter. Dactylis, Bromus, and Cynosurus are setigerous ; Festuca is orte 
