CEARACE^. 193 



Down— 7Louglunisland, and plentiful in Clandeboye Lake ; S.A.S. 

 Antrim— County Antrim ; Grov. Brit. Char. In Lough Xeagh (var. 

 suBiNEBMis Kutz.) ; {Rev . E. W. Lett) Jour. Bot., 1886. 



[C. polyacantlia A. Brmcn. 



Down ** Equisetum mtiscosiim sub aquis repens semine Uthospermi. This 



grows in the tui-f bogs of this county" Harris's Bonn, 1744.] 



The above note doubtless relates to Sherard's plant, which has been 

 referred to the present species. No County Do%\'n. specimens of C. 

 polyacantha are, however, known to exist, and it is probable that the 

 plant recorded by Harris was in reality C. hispida. 



3. C. hispida Linn. 



Ditches, and lakes — not common. ^1. mid. June tiU end of July. 

 Down — Abimdant in Loughinisland Lake (var. rl'dis Braun) ; S.A.S. 

 Deny — Abimdant in a brackish ditch at Limavady Junction; S.A.S. 

 County Deny (var. gtmnoteles Braun) ; Grov, Brit, Char. 



4. C. vulgraris Linn. 



Ditches, ponds, and lakes — frequent. Fl. mid. June till end of July. 

 Down — Loughinisland Lake, and in a brackish ditch in the Victoria Park ; 



S.A.S. 

 Antrim — In Co. Antrim (var. longibracteata-S'z^^:;.) {Rev, W, M. Rind) ; 



Grov. Brit. Char, 



TOZiYPElLXiA Leonhardi, 



[T. nidlfica {Sm.) Leon, 

 Antrim — Lough Neagh near Langford Lodge (D. 3Ioore, 1840) ; A. 

 Braun.'] 



There would seem to be diversity of opinion regarding this, but we 

 have preferred to rely on the high authority of Prof. Braim. Meanwhile 

 it is to be hoped that some of our local botanists may succeed in re-linding 

 the plant. Good specimens, wdth mature fructification would be decisive. 



M-ZTZ:X.I.A Agardh. 



1. V, translucens Ag. 



Ponds, and lakes— rare. Fl. July {Groves). 

 Down — Derry Lough north of BaUynahinch ; S.A.S. 

 Antrim— Sparingly in ponds and lakes in Rathlin Island ; S.A.S. 



