141 



CYNOSURUS ECHINATUS. 



LlNN^FS. HOOKEE AND ARNOTT. J. E. SMITH. PaRNELL. KoTII. 



Lindley. Babington. Eeichenbach. Deakin. Willdexow. 



Sinclair. Knapp. Schrader. Host. Hall. Hudson. Withering. 



Hull. Macreight. Kunth. Ealfs. 



VI, ate xliv. — B. 



The Tough Dor/s-tail Grass. 



Cynosurus — Dog's-tail. Echinatus — Covered with prickles; rough. 



A local, curious, interesting Grass, found in Northumberland, 

 Durham, Lancashire, Kent, and Sussex. 



Native of the Shetland Isles, Jersey, France, Italy, Spain, 

 Portugal, and North Africa. 



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

 ing five flat, broad, tapering, rough leaves, with roughish 

 sheaths; the upper sheath does not extend beyond its leaf, and 

 is furnished at its apex with a lengthy pointed ligule. Joints 

 smooth. 



Inflorescence simple-panicled, crowded; colour silvery green. 

 Panicle one inch in length, and half-an-inch wide, having brief 

 rough branches, all inclined to one side. Spikelets of three 

 horned florets, having at the base a pectinated involucre. Calyx 

 of two equal-sized glumes, narrow, membranous, destitute of 

 lateral ribs. Florets of two palea? ; exterior one of basal floret 

 considerably shorter than the calyx, form ovate-lanceolate, five- 

 ribbed, having a lengthy, slender, rough awn. Length from 

 twelve to eighteen inches. Root annual and tutted. 



Flowers the last week in June, and seeds ripen in Augn : 



