3. P. farinosa, L. Native. Intermediate type. Area C, N, D. Range 1, 2.
Rare in Tyneland. In the Wansbeck district near Netherwitton (Sir W. C. Trevelyan). Bog near Chollerford Bridge, and near a mineral well at Spital near Ovingham (F. R!). Frequent about the springs that issue from the Magnesian Limestone, as at Easington, Pensher, Hylton, Ferryhill, East Murton, Dalton-le-Dale, and Castle Eden. On the sea-banks between Ryhope and Seaham. In the Derwent district at Follingsby, and between Muggleswick Priory and the river, and by the Hyslop Burn near Camefield House. In the south-east tract at Stainton and Norton. Frequent in Weardale and Teesdale, ascending to the Widely Bank plateau, 550 yards.
2. TRIENTALIS, L.
1. T. europaea, L. Native. Scottish type. Area C, N, D. Range 1, 2.
Widely scattered in the hilly tracts. Amongst the Cheviots on Hedgehope, between Broadstruther and Goldscleugh, and near the Middleton Hall shepherd's house. Frequent on the sandstone range from Chillingham and Twizell southward to Alnwick, descending to the Brislee Hill in Alnwick Park, 150 yards, and near Rugley to 200 feet (T.). Amongst the Coquet moors above Rothbury and Harbottle, in the Wansbeck tract at Catcherside, Green Leighton, and by Rothley Lake, and in Tynedale along the Roman Wall. In woods at the Sneep above Shotley Bridge (G. S. Brady). In Durham in Shull Woods (Professor Oliver), and near Butsfield, Spring Houses, and Waskerley (J. Thornhill). Ascends to 500 yards.
3. HOTTONIA, L.
1. H. palustris, L. Native. English type. Area D. Range 1.
Plentiful in Morden Carr, and occurring in ponds in several places about Stockton, Darlington, and Durham, and recorded from a pond at East Boldon near Sunderland, these two last apparently its most northern stations.
