^'OKT^UMBEULAN^) AND DtJBHAM. 277 



15. C. rig Ida, Good. I^ative. Highland type. Area C, D. 



Eange 2, 3. 



Plentiful about the peak of Cheviot. In Teesdale on a moor 

 near the Caldron Snout (Sir "W. C. Trevelyan. F !). Range 

 550-850 yards. 



16. C. vulgaris, 'Fries,. Native. British type. Area C, N, D. 



Range 1-3. 



Everywhere common in inundated places, ascending to 750 

 yards on Highfield. 



17. C. stricta, Good. Native. English type. Area N, D. 



Range 1. 



Reported in the Flora from Heaton Dene and a marsh near St. 

 Anthony's ballast hills, but we have never seen Northumbrian 

 specimens, and the station of "Westcrow Wood near "Wolsingham 

 is no doubt a mistake. In Durham we have seen the true plant 

 in plenty at Hell Kettles near Croft, and received it from the 

 Rev. A. M. Norman from Red Carr near Sedgefield. 



18. C. acuta, L. Native. British type. Area C, N, D. 



Range 1. 



Frequent by stream-sides and in swamps in the low country. 



19. C. flava, L. Native. British type. Area C, N, D. 



Range 1, 2. 



Frequent in inundated places, ascending to 550 yards on Che- 

 viot, 600 yards on Highfield and Kilhope Law. 



20. C. extensa, Good. Native. Maritime. British type. 



Area C, D. Range 1. 



Salt marshes, not unfrequent. On the beach north of the vil- 

 lage on Holy Island (Thompson), "Warren Mills near Budle (Pro- 

 fessor Oliver and W. H. Brawn!), Howick and Alnmouth (T.). 

 In Durham about the mouth of the "Wear, and at Hartlepool and 

 Seaton Carew. 



