354- 
GRAMINEjE. 
35. Glyceria. Glumes unequal acute submembranous. 
Outer palea with 5 — 7 strong prominent distinct and parallel 
ribs and a scarious margin, subcylindrical, unarmed. Styles 
terminal. 
36. Sceerochloa. Glumes unequal, acute, membranous. 
Outer palea with 5 faint but distinct and parallel nerves, 
membranous, cylindrical below, unarmed, often keeled at 
the tip or with a very minute macro. Styles terminal. 
37. Briza. Glumes nearly equal, broad, 3-ribbed. Fl. 3 — 8, 
densely imbricated in a short distichous spikelet. Outer 
palea navicular, heartshaped, obtuse, rounded on the back, 
unarmed. Glumes and palea? membranous with a scarious 
margin. Styles terminal. " Fr. free." {Woods.) — Outer 
palea with 7 — 9 faint nerves. 
38. Cynosurus. Glumes nearly equal, scarious, with a strong 
keel, with 1 or more flowers. Outer palea rounded on 
the back with a terminal seta. Each spikelet with a pec- 
tinated bract (abortive spicula) at its base. Panicle spicate, 
1 -sided. 
39- Dactylis. Glumes unequal, herbaceous, many-flowered, 
the larger keeled. Outer palea compressed, keeled, 5-nerved, 
the dorsal nerve fringed and excurrent just below the summit 
forming a short seta. Spikelets crowded, subsecund. 
40. Festuca. Glumes unequal, herbaceous, many-flowered. 
Outer palea rounded on the back, very acute, or with the 
dorsal nerve excurrent at or just below the apex (if elongated 
usually called an awn), lateral nerves slightly converging 
and vanishing below the apex. Inner palea minutely cili- 
ated on the ribs. Styles terminal. — Rachis with acute 
angles. Sheaths of the leaves divided to the base. 
41. Bromus. Glumes unequal, herbaceous, many-flowered, 
lower \-nerved, upper 3 — 5-nerved. Fl. lanceolate, com- 
pressed. Outer palea with a long seta (usually) founded on 
3 nerves from below the tip. Styles below the summit of 
the fruit, lateral. — Sheaths of the 1. divided half-way down. 
Spikelets broader upwards. 
42. Serrafalcus. Glumes unequal, herbaceous, many- 
flowered, lower 3 — 5-nerved, upper 7 — 9-nerved. Fl. oblong, 
turgid. Outer palea with a short seta (usually) founded on 
3 nerves from below the tip. Styles below the summit of 
the fruit, lateral. — Sheaths of the 1. scarcely divided half- 
way down. Spikelets narrower upwards. 
43. Brachypodium. Glumes unequal, many-flowered. Outer 
palea rounded on the back setigerous at the summit, lateral 
nerves slightly converging not vanishing upwards. Inner 
