183 



AVENA FLAVE8CENS. 



LINNJEUS. HOOKER AND ARNOTT. SMITH. KOCH. GREVILLE. WILLDENOW. 



CUKTIS. KNAPP. SINCLAIR. SCHRADEH. 



HOST. SCHREBER. LEERS. EHRHART. WITHERING. HUDSON. HULL. 

 EELHAN. SIBTHORP. ABBOT. EEICHENBACH. DEAKIN. 



PLATE LX1I. A. 



Trisctmn flavesccns, BEAVEAUX. PARNELL. LINDLEY. 



" " BABINGTON. MACREIGHT. KUNTH. 



The Yellow Oat-Grass. 



Avcna Oat. Jflavescens -Yellow. 



A FREQUENT species, found in dry meadows arid pastures, 

 in England, Scotland, and Ireland, France, Italy, Germany, 

 Spain, Portugal, Norway, Sweden, Russia, and North Africa. 



Sheep are very fond of this Grass. 



Stem upright, circular, and polished, carrying six or seven 

 flat, roughish, acute leaves, with striated sheaths, the upper 

 one double the length of its leaf, and having a brief ligule at 

 its apex. Joints smooth. Inflorescence panicled, the panicle 

 being upright and spreading. The lower branches usually in 

 fives. Spikelets numerous, upright, and diminutive, mostly of 

 three awned florets, which extend beyond the calyx. Calyx 

 of two acute unequal membranous glumes, the upper glume 

 being the largest and three-ribbed. Florets of two palese, 

 exterior one of basal floret membranous. Apex bifid; base 

 hirsute; five-ribbed. Inner palea3 linear, acute, and membra- 

 nous. Awn twisted at the base, rough and longer than the 



