ORDER POTAMACE^E. 207 



C. In Calder Ghylls near Ponsonby. — (J. Robson.) 

 Plentiful in the old reservoir, Maryport, and in the mossy 

 brook near Dubmill. — (W. Hodgson.) Westward. — (Rev. 

 R. Wood.) 



W. Ditches below Middlebarrow Wood, Arnside. — (C. 

 Bailey, B.) In a pond in a hollow of the limestone on the 

 top of Whitbarrow, 250 yards. — (B.) 



1 1 23. Potamogeton obtusifolius,M. and K. Native. English 

 type. Range 1. 



C. Harras Moor, Whitehaven. — (Linton.) 



W. At the north end of Grasmere. — (F. C. Roper ! ) 



1 124. Potamogeton crispus, L. Native. British type. 

 Range 1. 



C. In the Derwent at Keswick. — (Linton.) Mockerkin 

 Tarn. — (W. B. Waterfall.) In the mill-race at Egremont. — 

 (Whitehaven Cat.) In the Eamont at Dalemain, the Ellen 

 at Aspatria, in the fish-pond at Brayton Hall, in the Eden at 

 Caldew, and in the Lowther at Askham. — (W. Hodgson.) 

 W. Abundant in Windermere. — (F. Clowes.) 

 L. Included in Miss Hodgson's Furness list. 



1 1 25. Potamogeton perfoliatus, L. Native. British type. 

 Range 1. Abundant in the large lakes ; Bassenthwaite Lake, 

 Derwentwater, Ullswater, Windermere, Coniston Water, etc. 



1 1 26. Potamogeton lucens, L. Native. English type. 

 Range 1. 



C. Calder Ghylls, Ponsonby.— (J. Robson.) North-west 

 end of Derwentwater. — (C. Bailey.) 

 L. Coniston Lake. — (Miss Beever.) 



1 1 27. Potamogeton prcelongus, Wulf. Native. Scottish 

 type. Range 1-2. 



