MONOCOTYLEDONS. GRAMlNEiE. Pott. 167 



\. M. nutans, panicle nearly simple racemed secund, spikelets 

 drooping ovate 2-flowered. p. 30. — Woods. 



2. M.uniflora,\iMMc\ed branched slightly drooping, spikelets erect 

 ovate with only one perfect floret, p. 31. — fVoods. 



3. M. ccsrulea, panicle erect subcoarctate, spikelets erect ob- 

 longo-cylindrical. p. 31. — Moors. 



C. Glume many -flowered. 

 IG. LOLIUM. 

 Glume of 1 valve, lateral, fixed. Perianth 2-valved, firmly en- 

 veloping the Caryopsis ; valves lanceolate, ext. with or with- 

 out an awn inserted below the extremity. 



1. L. perenne, spikelets much longer than the glume, florets 

 awnless linear-oblong compressed, root perennial, p. 45. — 

 Waste places. 



2. L. arvense., spikelets about as long as the glume, florets el- 

 liptical with very soft short awns, root annual, p. 45. — Fields. 



3. L. temulentum, spikelets shorter than the glume, florets^ el- 

 liptical about as long as the rigid awn, root annual, p. 45. — 

 Fields. 



17. SESLERIA. 



Glume 2 — 3-flowered, compressed, acute, somewhat awned. Pe- 

 rianth variously toothed or awned. Caryopsis free, but co- 

 vered with the perianth. 



1. S. ccprulea, panicle spiked ovate bracteated, spikelets 2 — 3- 

 flowered, ext. valve of the perianth cristate and toothed. p.31. 

 — Mountains. 



18. POA. 



Glume2-va.\vcd, many-flowered ; valves of the perianth subovate, 

 somewhat acute, awnless. Caryopsis free, covered with the 

 perianth. 



1. P. aqnalica, panicle erect very much branched, spikelets li- 

 near of obout 6 obtuse florets which have 7 ribs. p. 32. — 

 Ditches, ^c. 



2. V.fluitans, panicle nearly erect slightly branched, spikelets 

 linear appressed of from 7 — 1 1 obtuse florets which have 7 

 ribs with short intermediate ribs at the base, root creeping, 

 p. 32. — Ditches. 



3. P. maritima, panicle erect subcoarctate (rigid), spikelets li- 

 near of about 5 obtuse flowers which are obsoletely 5 -nerved, 

 leaves convolute, root creeping, p. 33. — Sea-coast. 



4. P. distans, panicle divaricate, branches at length deflexed, 

 spikelets linear of about 5 obtuse flowers which are obsoletely 

 5-nerved, leaves plane, root fibrous, p. 33. — Pastures Hear 

 the coast. 



