L&9 
HORDEUM MURINUM. 
Linnzvus. Hooker anp Arnott. Kountry. Basrneton. 
Kocn. Siro. Parnett. Grevitte. Linpney. WILipENow. 
RetcHenpacH. Retnan. Curtis. Martyn. Knapp. Host. Srincrarr. 
ScurapEr. Dickson. SrsrHorp. Assot. OEpER. EnRHART. 
Hupson. Witnertnc. Hurt. Macretent. Deakin. 
PLATE LXIII.—B. 
Hordeum spurium, GERARDE. 
The Wall Barley. 
Hordeum—............? 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 hirsute 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 palee, exterior one 
ovate and three-ribbed, interior 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. 
2 H 
