Page:Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne (1867).djvu/186

below Otterburn, 150 yards (Professor Oliver and Brown.) In the Blyth below Bedlington (W. H. Brown). Prestwick Carr (F. R!). Hell Kettles near Croft (B.). In the Skerne at Darlington (W. Backhouse). In the stells about Norton (J. Hogg).

2. MYPIOPHYLLUM, L.

1. M. verticillatum Myriophyllum verticillatum, L. Native. English type. Area N, D. Range 1.

In a pond at Walker near Newcastle (R. B. Bowman. A.). In a pond at Polam near Darlington (W. Backhouse. F.).

2. M. spicatum Myriophyllum spicatum, L. Native. British type. Area C, N, D. Range 1.

Frequent in ditches and slow streams, ascending Coquetdale to Rothbury, 150 yards.

3. M. alterniflorum Myriophyllum alterniflorum, D. C. Native. British type. Area C, N. Range 1.

Heathy ponds. Shipley near Alnwick (John Storey!). Prestwick Carr and Crag Lake, 250 yards (R!). In the Chirdon Burn near Bellingham (W.H. Brown!) Easily passed over as the preceding.

3. CERATOPHYLLUM, L.

1. C. demersum Ceratophyllum demersum, L. Native. English type. AreaD. Range 1.

Ditches on Durham Moor (Rev. J. Symons. F.).

4. CALLITRICHE, L.

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

Everywhere common in ditches and ponds, ascending to 500 yards in Allendale.

2. C. platycarpa Callitriche platycarpa, Kutz. Native. British type. Area C, N, D. Range 1, 2.

Frequent in swamps and on the edges of ponds, ascending to 1700 feet in West Allendale.