168 MONOCOTYLEDONS. GRAMINEiE. Bviza. 



5. V. procumbens, panicle compact ovato-lanceolate disticho- 

 secund (rigid), spikelets linear-lanceolate of about J flowers 

 which are /i-ribbed. p. 33. — Salt marshes. 



6. P. ri^ft^a, panicle lanceolate disticho-secund (rigid), spikelets 

 linear acute of about 7 flowers which are almost ribless, root 

 fibrous, p. 33. — Walls and dry hanks. 



7. P. compressa, panicle subsecund spreading (afterwards subco- 

 arctate), spikelets oblongo-ovate of from 5 — 7 obtuse flowers 

 connected by a web, culm compressed, root creeping, p. 34. 

 — trails. 



8. P. alpina, panicle diffuse, spikelets ovate of 4 — 5 acute 

 flowers hairy below (but not webbed), leaves broadly linear 

 obtuse, ligule of the upper leaves oblong acute, of the lower 

 ones short obtuse, p. 34. — Alps. 



9. P. laxa, panicle contracted lax slightly drooping, spikelets 

 ovate of about 3 flowers which are acute connected by a web, 

 leaves linear acute narrow, ligules all lanceolate, p. 34. — Alps. 



10. P. ccesia, " panicle spreading, spikelets ovate 5-flowered, 

 glumes lanceolate silky-edged unconnected by any web, ligule 

 very short and blunt." p. 34. — Alps. 



1 1 . P. trivialis, panicle diffuse, spikelets oblongo-ovate of about 



3 flowers which are acute 5-nerved connected with a web, 

 culms and sheath roughish, ligule oblong, root fibrous, p. 35. 

 — Meadows. 



12. V.pratensis, panicle diffuse, spikelets oblongo-ovate of about 



4 flowers which are acute 5-nerved webbed, culm and sheaths 

 smooth, ligule short, root creeping, p. 35. — Meadows. 



13. P. annua^ panicle subsecund divaricated, spikelets oblongo- 

 ovate of about 5 flowers which are a little remote 5 -ribbed 

 destitute of web, culm ascending compressed, root fibrous, 

 p. 35. — Pastures. 



14. P. nernoralisy panicle slender slightly leaning one way lax 

 attenuate, spikelets lanceolate of about 3 rather distant slight- 

 ly webbed flowers, ligule short truncate, culms subcompressed 

 and sheaths glabrous, root subrepent. p. 35. — Woods and 

 mountains. 



15. P. decumlens, panicle nearly simple contracted few-flower- 

 ed, glume as long as the four-flowered spikelet, ligule a tuft of 

 hairs, p. 36. — Mountain pastures. 



19. BRIZA. 



Glume 2-valved, many-flowered. Perianth 2-valved, ventricose, 

 the valves cordate, obtuse, awnless. Caryopsis adnate with 

 the perianth. 



1 , Br. media, spikelets broadly ovate of about 7 flowers, glume 

 shorter than the florets, p. 37. — Pastures, 



