179 



AVENA PUBESCENS. 



Linnjeus. Smith. Willdenow. Knapp. Hooker and Arnott. 



Sinclair. Schbader. Leers. Host. Oeder. 



Ehkiiart. Koch. Gbeville. Hudson. Withebing. Hull. Eelhan. 



EUNTH. SlBTHORP. ABBOT. DeAKIN. 



Lightfoot. Maceeight. Babington. Eeichenbach. Rales. 



PLATE I.X. 1!. 



Trisclum pubcscens, Persoon. Parnell. Lindlrt. 



Aoena nesquitertia, Linn.eus. 



The Downy Oat-Grass. 



Avena — Oat. Pubescens — Downy. 



A Grass deserving the attention of agriculturists, giving a 

 good yield, and requiring but little nourishment from the soil. 



A frequent Grass in England, Scotland, and Ireland. Native 

 also of France, Italy, Germany, Russia, Norway, and Sweden. 



Stem upright, circular, and smooth, and minutely striated, 

 having about five soft, broad, flat, hairy leaves, with the 

 upper sheath more than three times the length of its leaf, and 

 having a conspicuous membranous ligule; lower sheaths not so 

 long as their leaves. Joints three or four. Inflorescence com- 

 pound racemed or simple-panicled. The basal spikelets situated 

 on lateral branches, whilst those near the apex are on brief 

 footstalks. Panicle upright. Calyx of two unequal, membra- 

 nous, acute glumes, the basal one destitute of lateral ribs, and 

 shorter than the upper one. Florets of two pales, the exterior 

 one of basal floret membranous on the upper portion; five-ribbed; 



2 E 



