148 
1941. 
1942. 
1956. 
THE FLORA OF BURTON AND NEIGHBOURHOOD. 
C. hispida, Linn. 
Ponds, etc., E.B. Bretby Ponds; Pond on Outwood Hills; 
J.E.N 
C. vulgaris, Linn. 
Ditches, Ponds, etc., E.B. Dunstall; J.E.N. 
var. longibracteata, Kuetz. 
Pond on Outwood Hills; Canal, Clay Mills; J.E.N. 
var. papillata, Wall. 
Ponds near Sinai Park and Outwood Hills ; I} E.N. 
Nitella flexilis, Agardh. 
Ditches and Ponds, Ticknall; E.B. 
