96 BRITISH GRASSES. 



pressed, adhering to the flowering glume and palea. 

 Species 2 : — 1. media; 2. minor. 



Genus 35. Poa. Inflorescence a simple or compound 

 panicle; spikelets many-flowered, awnless, ovate, oblong, 

 two-ranked ; outer glumes rather unequal, ovate, pointed, 

 mostly keeled ; flowering glumes ovate, pointed, concave, 

 more or less keeled, compressed, rather longer than the 

 outer ones, membranaceous at the margins; scales acute 

 or torn, swollen at the base ; ovary roundish ; styles two, 

 reflexed, hairy ; stigmas feathery ; seed oblong, pointed, 

 compressed on each side. Species 15: — ]. aquatica; 

 2. fluitans ; 3. maritima ; 4. distans ; 5. procumbens ; 

 6. rigida ; 7. loliacea ; 8. annua; 9. compressa; 10. 

 pratensis ; 11. trivialis ; 12. nemoralis ; 13. laxa ; 14. 

 alpina ; 15. bulbosa. 



Genus 36. Catabrosa. Spikelets containing only 

 two florets ; outer glumes broad, blunt at the summit, 

 or indented. Species 1 : — aquatica. 



Genus 37. Molinea. Spikelets small, flattened ; outer 

 glumes pointed ; palea small, with a bristle at its base. 

 Species 1 : — ccerulea. 



Genus 38. Melica. Panicle simple or compound, 

 containing a few large spikelets; spikelets containing 

 one or more flowers, and a wedge-shaped glume enclosing 

 one or two rudimentary florets; outer glumes ovate, 

 concave, thin, nearly equal ; flowering glumes ovate, 

 concave ; palea ovate, flat ; scale single, fleshy, and hori- 

 zontal ; ovary top-shaped; styles two, bristle-shaped, 

 spreading ; stigmas long, feathery ; filaments hair-like, 

 thickened at the base ; anthers oblong ; seed ovate, with 

 a longitudinal furrow on the upper side. Species 2 : — 

 1. nutans ; 2. uniflora. 



Genus 39. Triadia. Spikelets several-flowered ; outer 



