Page:Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne (1867).djvu/143

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NORTHUMBERLAND AND DURHAM
125

9. COCHLEARIA, L.

1. C. officinalis Cochlearia officinalis, L. Native. British type. Area C, N, D. Range 1–3.

The typical form is common along the coast-line. The var. alpina is very rare amongst the Cheviots, occurring sparingly only in the Brizzle and Henhole, but frequent in Allendale, Weardale, and Teesdale, and carried down into the low country along the streams.

2. C. danica Cochlearia danica, L. Native. Maritime. British type. Area C, N, D. Range 1.

Scattered on rocks along the coast; Farne Islands, Holy Island, Newbiggin, Cullercoats, Tynemouth, Hartlepool, Seaton Carew, &c.

3. C. anglica Cochlearia anglica, L. Native? Maritime. English type. Area N. Range 1.

On the coast, not seen recently. Bank of the Tyne at the mouth of Coble Dene, North Shields (Robertson, F!). Reported also in the Flora from Holy Island and by the Wear at Sunderland.

10. ARMORACIA, Rupp.

1. A. rusticana Armoracia rusticana, Rupp. Alien.

An occasional straggler from gardens.

11. DRABA, L.

1. D. incana Draba incana, L. Native. Xerophilous. Highland type. Area D. Range 2.

Confined to the high limestone scars of Upper Teesdale and Weardale. In the former dale we have seen it on Falcon Clints, Widdy Bank Fell, Newbiggin Moor, and ascending to the Upper Limestone of Bleak Law, and in the latter in Kilhope and Burnhope. Range of elevation 450–600 yards.

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

Common on walls and dry banks, ascending to the Main