18. NASTURTIUM, R.Br.
1. N. officinale, R.Br. Native. British type. Area C, N, D. Range 1, 2.
Everywhere common in streams and ditches, ascending in Teesdale to Middleton, in Weardale above St. John's Chapel (350 yards).
2. N. terrestre, R.Br. Native. English type. Area C, N, D. Range 1.
Damp places, rare. Bank of the Tweed between Norham and West Ord (Dr. Johnston). Old quarry at Stamford (T.). Banks of the Aln near Alnwick (R. Embleton, A.). Borders of Prestwick Carr (F!). Blaydon (John Storey!). Banks of the Skerne near Darlington (E. Robson, F.).
3. N. sylvestre, R.Br. Native. English type. Area C, N, D. Range 1.
By the Tweed at Birgham Haugh down to the Union Bridge (Dr. Johnston). Shores of the Tyne at Corbridge, Benwell, and Stella (F. R!) Banks of the Team near Redheugh and of the Derwent below Swalwell (R.B. Bowman). Wear side at Finchale Abbey (Miss Wharton). Banks of the Skerne near Darlington (Miss M.J. Hancock). Not unfrequent in ditches abont Norton (John Hogg).
19. SISYMBRIUM, L.
1. S. officinale, Scop. Native. British type. Area C, N, D. Range 1.
Common by road-sides and in waste ground, ascending Coquetdale above Alwinton and in Weardale to Westgate (300 yards).
2. S. Sophia, L. Native. English type. Area C, N, D. Range 1.
Not unfrequent in similar situations to the preceding. East Ord, Learmouth, Bamborough, Budle, Bulmer, Holy Island, Belford, Alnwick, Embleton, Beadnell, Morpeth, Corbridge, Hexham,
