AVENA STRIGOSA. 181 



AVENA STRIGOSA. 



SCHRERER. HOOKER AND ARNOTT. SMITH. PARNELL. KOCH. LINDLEY. 



WILLDENOW. KNAPP. DON. SCHRADER. HOST. EHRHART. 

 RETZ. WITHERING. HULL. BABINGTON. MACREIGHT. KUTH. DEAKIN. 



PLATE LXI. 



The Bristle-pointed Oat- Grass. 

 Avena Oat. Strigosa Slender. 



A COMMON species, growing in corn-fields, and differing from 

 --^- Avena fatau and A. sativa in having the florets ending in two 

 long bristles. 



Found in the counties of Notts., York, Durham, Sussex, Cornwall, 

 and Denbigh. In Scotland, in Inverness, Aberdeen, Forfar, and 

 Perthshire. The Island of Anglesea. Central Europe. 



Stem upright, circular, and polished, bearing four or five somewhat 

 broad, acute, glaucous, rough leaves, with smooth striated sheaths, 

 the upper one extending beyond its leaf, and having an oblong 

 membranous ligule at its apex. Joints smooth. Inflorescence simple 

 panicled. Panicle inclined to one side, having rough lengthy lateral 

 branches. Spikelets large and oval, of two awned florets. Calyx of 

 two acute, smooth, membranous, somewhat unequal glumes, the basal 

 one smallest and seven-ribbed, the other nine-ribbed. Ribs prominent 

 and green. Florets of two palese, the exterior one of basal floret of 

 same length as large glume, ending in two rough bristles; six-ribbed 

 and rough. Inner palea linear, membranous, and shorter. Awn rough, 

 thick, and bent. Length thirty- six inches. Root annual and fibrous. 



Flowers at the commencement of July, and ripens its seed in six 

 weeks. 



A. strigosa much resembles the A. sativa, (the cultivated Oat,) 



