189 



HOEDEUM MURINUM. 



LlNN^US. HOOKEE AND AeNOTT. KuNTH. BaBINGTON. 



Koch. Smith. Pabnell. Geeville. Likdlet. "VYilldenow. 



Reichenbach. Relhan. Cuetis. Mabtyn. Knapp. Host. Sikclaib. 



Scheadee. Dickson. Sibthoep. Abbott. Oedeb. Ehehaet. 



Hudson. Withebing. Hull. Mackeight. Deakin. 



plate lxiii. — B. 

 Hordeum spurium, Geeabde. 



The Wall Barley. 



Sordeum — \t Murinum — A wall. 



A very common English Grass, growing on waste grounds, 

 on road-sides, and by walls. Common in the south of Europe 

 and in Germany. 



A useless agricultural Grass. 



Stem circular, upright, and smooth, carrying three or four 

 linear, flat, somewhat hii sute roughish leaves, with smooth striated 

 sheaths, the upper one extending beyond its leaf, and having 

 at its apex a brief jagged ligule. Joints smooth. Inflorescence 

 spiked; the spike two inches long, dense, and compact. 

 Spikelets in threes, and consisting of one awned floret. Calyx 

 of two equal-sized glumes, and ending in a lengthy rough 

 awn. Central floret consisting of two paleae, exterior one 

 ovate and three-ribbed, mterior one membranous. Length from 

 twelve to thirteen inches. Root annual and fibrous. 



Flowers at the commencement of July, and ripens its seed 

 in a month. 



The specimen illustrated was gathered in Nottingham Park. 



