GRAMINEiE. 
353 
awned. Awn dorsal, kneed and twisted. Ovary glabrous. 
Fr. neither crested nor furrowed. 
26. Avena. Glumes 2- or more-flowered. Outer. paled, with 
lateral nerves, awned, ending in 2 points. Awn dorsal, 
kneed and twisted. Ovary hairy at the top. Fr. crested 
and furrowed. 
27. Arrhenathrum. Glumes 2-flowered with a rudiment, 
lower fl. male with a long dorsal kneed and twisted awn, 
upper with a short straight awn. Paleoe herbaceous, end- 
ing in 2 points. Ovary hairy at the top. Fr 
28. Holcus. Glumes 2-flowered, lower perfect awnless (or 
very rarely awned), upper usually male with a dorsal awn. 
Palea: hardening on the fruit. 
29. Tuiodia. Glumes 2 — 3-flowered. Outer palea rather 
coriaceous, smooth, rounded on the back, bifid with an in- 
termediate broad point sometimes becoming the base of a 
kneed awn. 
: X. FESTUCINE.E. Spikelets with 2 or more flowers, 
upper often barren. Glumes shorter than the lowest flower. 
Styles very short. Stiymas protruded from the base of the 
flower. 
30. Kceleria. Glumes unequal, upper one with 2 or 3 ribs, 
shorter than the compressed 2 — 5-flowered spikelet. Outer 
palea nerved, keeled, acuminate (or with a straight subapi- 
cular seta). Seed loose. Styles terminal. 
31. Melica. Glumes nearly equal, with lateral ribs, nearly 
as long as the ovate spikelet of 1 or 2 flowers rounded on the 
back and a clublike rudiment of 1 or 2 more. Palea? hard- 
ening on the loose fruit. Styles terminal. 
32. Molinia. Glumes unequal, without lateral ribs, shorter 
than the lanceolate spikelet of 2 or 3 semicylindrical flowers 
and a subulate rudiment of another. Palea; hardening on 
the loose fruit. Styles terminal. 
33. Catabrosa. Glumes unequal, very short, rounded or 
truncate, without lateral ribs, much shorter than the spike- 
let. Flowers usually 2, rounded on the back, distant. 
Outer palea membranous, with 3 ribs ending in teeth which 
do not quite extend to the summit and are connected by the 
scarious margin. Styles terminal. — The upper glume has 2 
very short faint lateral nerves. Awn 0. 
34. Poa. Glumes rather unequal. Outer palea with 3 or 5 
nerves, membranous below, scarious at the tip, compressed, 
keeled, unarmed. Styles terminal. 
