Gramineae. 1 6 



J 



Hor'deum sylvat'icum (25). Wood Barley. 7—8. Stem 1—3 ft. erect 



(1756) smooth, spike round compact, central floret imperfect, glumes awl- 

 shaped, awn twice as long as the glume. \(j.{Malham Cove/Stackhouse),C 



HOR'DEUM PRATEN'SE (60). Meadow Barley. 6—7. Stem 1—2 



(1757) ft. high erect smooth, spike compressed, central floret perfect, glumes 

 setaceous rough, awn not longer than the glume, keels of palea not 

 ciliate. Moist pastures. 



HOR'DEUM MURrNUM (75). Wall Barley. 6—7. Stem 6— 12 in. 



(1758) erect smooth, spike compact, central floret perfect, glumes of middle 

 spikelet lanceolate fringed, of lateral florets setaceous rough, keels of 

 palea ciliate. Dry places. 



Hordeum distichuin or Two-rowed Barley, characterised by its very long 

 awns, is the cultivated Barley. 



V.—LOLIUM. 



Spikelets many-flowered bracteate alternate sessile in a flat spike, empty 

 glume solitary. 



Glumes longer than the spikelet, awns long, . . L. temulentum. 

 Glumes shorter than the spikelet, awns o, . . . L. perenne. 



LO'LIUM TEMULEN'TUM (64). Bearded Darnel. 6—7. Stem 

 (1748) I — 2 ft., empty glume longer than the spikelet, awn long, spikelets 

 5 — 7 flowered. Cornfields. 



LO'LIUM PEREN'NE (112). Darnel or Rye -grass. 6—7. Stem 1—2 

 (1746) ft., empty glume shorter than the spikelets, awns short or none, spike- 

 lets 8 — 15 flowered. Fields. Fig. p. 162. 



VI.— A L OPE C UR US. 



Spikelets i -flowered laterally compressed in thick cylindric spike-like 

 panicles, glumes keeled united at the base fringed, empty glumes awnless, 

 flowering glume with an awn from the middle of the back, inner palea 

 wanting, lodicules absent, style single or double hairy. 



Stem ascending, bent at the joints, 641 

 Stem erect, 640 



640 Panicle obtuse, . . . . , , .A. pratensis. 



640 Panicle acuminate A. agrestis. 



641 Awn scarcely longer than the flowering glume, . . A. fulvus. 



641 Awn twice as long as the flowering glume, . . A. geniculatus. 



Alopecu'rus ful'vus (25). 7. Stem i—i| ft. procumbent, panicle cylindrical 

 (1643) obtuse, awn hardly longer than the glume. [M. 



