787 



and separated by them from the metalliferous slates, of more ancient 

 date, which occur to the north of the valley. 



Besides the lower secondary formations of the neighbourhood, a 

 small outlier of the green sand caps a hill about two miles and a half 

 to the south-west of Bideford ; and the lower new red sandstone, 

 entering on the carboniferous girts, forms a low cliflfi for about half a 

 mile along the coast at Peppercombe, a small village, at the south- 

 eastern extremity of Barnstaple Bay. 



In enumerating the plants of the district, I shall consider them 

 under two heads : firstly, those occurring in the low alluvial valley, 

 with which will be included most of the maritime species ; secondly, 

 those growing on the higher land in the immediate neighbourhood. 



Plants of the Alluvial District. 



Ranunculus Flammula, L., /3. reptans, Lightf. Moist spots be- 

 tween the sand-hills of Braunton Burrows. 



Glaucium luteum, Scop. Near the raised beach of the north ex- 

 tremity of Braunton Burrows ; Instow Burrow. 



Cakile maritima, Scop. Near the larger light-house, Braunton 

 Burrows ; west bank of the Torridge, a short distance below Bideford. 



Cochlearia Anglica, L. Banks of the Torridge, near Bideford. 



Matthiola sinuatuy Br. Raised beach to the north of Braunton 

 Burrows. 



Reseda lutea^ L. Sand-hills of Braunton Burrows. 



Viola lutea^ Huds., &. Curtisii, Forst. Braunton and Instow Bur- 

 rows, invariably with yellow flowers. In specimens I received from 

 New Brighton, Cheshire, through the Botanical Society, the flowers 

 are all purple, and the plant appears to be of much stronger habit. 

 Is it probable that the two plants are distinct; or are these differences 

 merely the result of a difference of soil or situation ? 



Saponaria officinalis, L. Instow Burrows, close to the Barnstaple 

 road ; also by the road-side within the fence. 



Saponaria officinalis, 'L.,Jlore pleno. Near the light-house, Braun- 

 ton Burrows, probably introduced. 



Sagina nodosa, Mey. Northam and Braunton Burrows. 



Spergularia marina, Camb. Salt-marshes on the banks of the 

 Torridge, 



Spergularia media. Southcott Marsh, near Bideford. 



Radiola Millegrana, Sm. Sandy pasture of Northam Burrows. 



Erodium maritimum, Sm. Sand-hills of Braunton Burrows, and 

 sandy pasture near the pebble-ridge, Northam Burrows. 



