Page:Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne (1867).djvu/319

2. E. umbrosum Equisetum pratense, Willd. Native. Scottish type. Area C, D. Range 1, 2.

By the side of the Coquet near Felton, within 100 feet of the sea-level, discovered by Mr. J. Sidebotham. In Teesdale about the lower part of the Langdon stream, and by the Tees down as far as Middleton Bridge, 250-400 yards.

3. E. arvense Equisetum arvense, L. Native. British type. Area C, N, D. Range 1-3.

Common on clayey banks and in cultivated fields, ascending to 550 yards in Allendale, 650 yards on Highfield near Grasshill.

4. E. sylvaticum Equisetum sylvaticum, L. Native. British type. Area C, N, D. Range 1, 2.

Frequent in damp woods, ascending to 450 yards in the Cheviot ravines, 1600 feet in Harwood Dale, 550 yards in Allendale.

5. E. palustre Equisetum palustre, L. Native. British type. Area C, N, D. Range 1-3.

Frequent in damp places, ascending to 700 yards on Highfield, 600 yards at the head of Allendale.

6. E. limosum Equisetum x limosum, L. Native. British type. Area C, N, D. Range 1, 2.

Common in ponds, ascending to Harbottle Lough, and to nearly 400 yards in Rookhope.

7. E. hyemale Equisetum hyemale, L. Native. Scottish type, Area C, N, D. Range 1.

Stream-sides in the low country, rare. Banks of the Aln, Coquet, Wansbeck, in many of the Tyne denes, banks of the Derwent, Castle Eden Dene, &c.

8. E. variegatum Equisetum variegatum, Schleich. Native. Scottish type. Area N, D. Range 1, 2.

By the Irthing at Wardrew, 150 yards (F. R!). In Teesdale from the banks of the Whey Sike down to the Tees as low as Middleton, 250-500 yards.