98. GRAMIXEJ3. 481 



a terminal bristle. Each spikelet with a comb-like bract at 

 its base. Panicle spikelike, 1 -sided. Nut closely coated 

 with the pales. 



41. DACTYLIS. 01. 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, subseciind. Nut free. 



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



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

 dorsal vein evcurrent at or just below the tip as an awn ; 

 lateral veins slightly converging and vanishing below the tip. 

 Upper pales minutely ciliate on the ribs. Styles terminal. 

 Nut furrowed, adhering to the pales. Ilachis with acute 

 angles. Sheaths of the leaves divided to the base. 



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

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

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

 from below the tip. Styles below the top of the ovary. Nut 

 furrowed, adhering to the pales. Sheaths of the 1. divided 

 halfway 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 ovary. Nut 

 furrowed, adhering to the pales. Sheaths of the 1. scarcely 

 divided halfway down. Spikelets narrower upwards. 



B. Inflorescence spikelike ; bearing the spikelets in hollows of 

 the rachis. 



Tr. XII. HORDEIE/K Spikelets solitary or 2 or 3 together, 

 subsessile on opposite sides of a channelled 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. Gl. opposite, unequal, many- flowered, 

 their edges towards the rachis. Upper pale coarsely fringed 

 on the ribs. The unequal gl. distinguish this from 

 Triticum. 



Y 



