97. GRAMTNE.E. 387 



1- or more flowered. Lower pale rounded on the back with 

 a terminal bristle. Each spikelet with a pectinated bract at 

 its base. Panicle spicate, 1 -sided. Nut closely coated witn 

 the pales. 



41. DACTYLIS. Gl. unequal, herbaceous, many-flowered; 

 lower keeled. Lower pale compressed, keeled, 5-veined ; 

 dorsal vein fringed and excurrent just below the tip as a 

 short awn. Spikelets crowded, subsecund. 



42. FESTUCA. Gl. unequal, herbaceous, many-flowered. 

 Lower pale rounded on the back, very acute, or with the 

 dorsal vein excurrent at or just below the tip as a short 

 awn ; lateral veins slightly converging and vanishing below 

 the tip. Upper pale minutely ciliated on the ribs. Styles 

 terminal. Rachis with acute angles. Sheaths of the leaves 

 divided to the base. 



43. BROMUS. Gl. unequal, herbaceous, many-flowered ; lower 

 l-veined, upper 3 5-veined. Fl. lanceolate, compressed. 

 Lower pale with a long awn, (usually) founded on 3 veins, 

 from below the tip. Styles below the top of the fruit. 

 Sheaths of the 1. divided half-way down. 



44. SERRAFALCUS. Gl. unequal, herbaceous, many-flowered, 

 lower 3 5-veined, upper 7 9-veined. Fl. oblong, turgid. 

 Lower pale with a short awn, (usually) founded on 3 veins, 

 from below the tip. Styles below the top of the fruit. 

 Sheaths of the 1. scarcely divided half-way down. Spike- 

 lets narrower upwards. 



Tr. XII. HORDEIE^E. Spikelets solitary or 2 or 3 together, 

 subsessile on opposite sides of a channeled and toothed- 

 jointed rachis. Uppermost fl. often barren. Style very 

 short. (Lateral spikelets often stalked in Hordeum.) 



f Spikelets very shortly stalked or subsessile. 



45. BRACHYPODIUM. Spikelets solitary. Gl. opposite, un- 

 equal, many-flowered, their sides towards the rachis. Upper 

 pale coarsely fringed on the ribs. The unequal gl. distin- 

 guish this from Triticum. 



ft Spikelets quite sessile. 

 4- Glumes 2. 



46. TRITICUM. Spikelets solitary. Gl. opposite, nearly 

 equal, many-flowered, their sides towards the rachis. Inner 

 pale minutely ciliate on the ribs. 



47. ELYMUS. Spikelets 2 or 3 together. Gl. 2, both on the 



s2 



