4. THLASPI, L.
1. T. arvense, L. Colonist. British type. Area C, N, D. Range 1.
A rare weed of cultivated ground. Ord fields and other places near Berwick (Johnston). Field a short distance north of Wooler (James Hardy). Dunstan Square and between Lesbury and Warkworth (R. Embleton). Heaton Dene and fields near Gateshead (F!).
2. T. alpestre, L. Native. Intermediate type. Area N, D. Range 1-3.
This species shows a curious preference for lead-mines, and has a wide vertical range in the lead-districts. There are two varieties, of which T. sylvestre, Jordan, grows near the Allen at Thornhaugh (G.S. Brady!); plentifully with Cochlearia about the Langlee mines not far distant from the first station; by the Tyne in various places from Featherstone Castle as low down as Bywell; and in the wood on the north side of the Tees at Winch Bridge (B.); and T. occitanum, Jord., in Weardale, on the north side of the stream below Eastgate, where it was first noticed by Mr. T.J. Foggitt (250 yards); and about the Grasshill mines on Highfield, ascending to 750 yards (B.).
5. CAPSELLA, Vent.
1. C. bursa-pastoris, D. C. Native. British type. Area C, N, D. Range 1, 2.
Everywhere common in cultivated fields and waste ground, ascending to 1200 feet in Teesdale, 1340 feet on Rookhope Moor, 1500 feet on Kilhope, and 1530 feet above Allenheads.
5. TEESDALIA, R. Br.
1. T. nudicaulis, B. Br. Native. English type. Area C, N. Range 1, 2.
Not unfrequent about Wooler amongst the porphyritic debris. Yevering Bell (nearly 400 yards), Maiden Well, Hellpath near
