Page:Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne (1867).djvu/188

170 hills, ascending to 800 yards on Cheviot, 550 yards in Welhope. Var. rivularis is frequent in the hill sykes.

1. , L. Native. British type. Area C, N, D. Range 1.

Frequent in dry sandy soil, ascending on porphyry above Alwinton to 300 yards, and nearly as high on the banks of Common Burn near Wooler. S. perennis of Winch's Flora is no doubt a mistake for this.

1. , L. Denizen. Intermediate type. Area C, N, D. Range 1.

Not unfrequent by stream-sides, but very doubtfully indigenous. The most wild-looking station we have seen is in Tecket Dene, 150 yards.

2. , L. Native. Intermediate type. Area N, D. Range 1, 2.

The typical plant doubtfully indigenous like the preceding. Var. petraeum in Tynedale near Warden, Haydon Bridge, and some of the denes nearer Newcastle, and in Teesdale from Moor Rigs, 400 yards, down to Coniscliffe.

3. , L. Denizen. Intermediate type. Area C, N, D. Range 1.

Woods, doubtfully indigenous. Ratcheugh, Denwick, Hulne, Felton, Wallington, Sunderland, Chester-le- Street, and by the Tees above Darlington.