Page:Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne (1867).djvu/156

138 1. , L. Native. British type. Area C, N, D. Range 1, 2.

Common on walls and in dry places, ascending in Teesdale to the Main Limestone scars of Newbiggin Moor (550 yards). The var. leptoclados is not unfrequent.

2. A. verna, L. Native. Xerophilous. Intermediate type. Area C, N, D. Range 1–3.

Absent from the Cheviot, and in the northern district known only on the basalt at Spindlestone (R. Embleton). Frequent throughout the lead country, ascending to 750 yards on Highfield and 600 yards above Allenheads, descending to the Tees at Middleton and the Tyne at Wylam.

3. A. uliginosa, Schl. Native. Local type. Area D. Range 2.

In Teesdale very sparingly beside the streamlet that runs from the Sugar Limestone of Widdy Bank Fell to the Weel, and more abundant in the swamp above Widdy Bank House with Elyna and Juncus triglumis, 500–550 yards.

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

Frequent upon hedge-banks and in bushy places, ascending in Coquetdale above Rothbury and in Teesdale to High Force (980 feet).

1. S. nemorum, L. Native. Scottish type. Area C, N, D. Range 1, 2.

Damp and shaded woods, not unfrequent. By the Tweed at Wark, Cornhill, and Norham, the Aln in Hulne and Rugley Woods, the Coquet at Warkworth, the North Tyne at Simonburn, in the Derwent district at Cawsey and Ravensworth, ascending the Wear to Elm Ford west of St. John's Chapel (350 yards), descending to Chester-le-Street and Lambton Woods, ascending the Tees to Middleton-Teesdale, descending to Baydales.