CATABROSA AQUATTCA. 65> 



CATABROSA AQUATICA. 



BEAUVOIS. HOOKER AND ARNOTT. PARNELL. LINDLEY. 

 PLATE XIX. 



Aira aquatica, LINNAEUS. J. E. SMITH. HOOKER. 



" " WITHERING. HULL. SIBTHORP. 



" " RELHAN. HOOKER. ABBOT. 



" " CURTIS. KNAPP. EHRHART. 



" " WlLLDENOW. SCHRADER. HOST. 



" " OEDER. GREVILLE. 



Poa dulcis, SALISBURY. 



The Water Whorl-Grass. 

 Catabrosa A Gnawing. Aquatica Water. 



CATABROSA. Beauvois. Catabrosa or Whorl-Grass, has a spreading panicle 

 with awnless florets. The name is derived from the Greek, and signifies a 

 gnawing, on account of the extremity of the glumes being erose. 



Catabrosa aquatica is the only British species. 



A BOLD handsome species, growing in ditches, banks of rivers, 

 and other wet situations, rendering it a useless agricultural 

 Grass, although cattle are very fond of it. 



A common Grass in England, Scotland, and Ireland. Abroad it is 

 a native of France, Italy, Germany, Sweden, Norway, Lapland, and 

 in the north of South America. 



Root perennial, extremely long, branched, creeping, or frequently 

 floating on the water, and having lengthy shining white fibres. Stem 

 strong, circular, and smooth, the basal portion procumbent and floating 

 in the water, the upper portion rising from twelve to eighteen inches 

 above the water, bearing three or four broadly-linear leaves, having 

 striated, smooth, lax sheaths, the upper one shorter than its leaf, and 



