NORTHTJMBERLAND AND DURHAM. 



45 



Euphrasia officinalis. 

 Empetrum nigrmii. 

 Rumex acetosa. 

 Liizula sylvatica. 

 miiltiflora. 

 Eriopliorum vagiuatum. 



augiistifolium. 

 Carex rigida. 



stellnlata. 

 Aira flexuosa. 



Anthoxanthuni odoratum. 

 Agrostis vulgaris. 

 Poa annua. 

 Festuca ovina. 

 Nardus stricta. 

 Lastrea dilatata. 

 Blechnum boreale. 

 Lycopodium selago. 

 alpinum. 



We find that several of the common pascual plants do not 

 ascend nearly so high amongst the Cheviots as in the limestone 

 dales. Several instances of this will be noticed in our list of 

 species, of which we may mention here Bunium flexuosum, Hera- 

 cleum sponclyliuyn, Apargia hispida, and HJiinanthus crista-galli, 

 none known on porphyry above 350 yards, but ascending in the 

 limestone dales to 600 or 650 yards. There are a few species 

 which with us are either peculiar to the porphyry and basalt, or 

 more abundant about them than anywhere else. Mr. Tate has 

 mentioned most of them already, and I may add to his list Pole- 

 monium cmruleum as peculiar and as preferent, Sjpergularia rubra, 

 and Filago minima. Of the Plora of our basaltic crags, the fol- 

 lowing list, which contains all the species noted upon the face, 

 and on the slope, and amongst the debris of the dike, where it 

 stands out conspicuously amongst the low moors west of Kyloe, 

 is a fair illustration. 



Florida of a Loiver Zone Basaltic Crag. 



Thalictrum flexuosum. 

 Viola sylvatica. 

 Helianthemxun vulgare. 

 Ulex eui'opseus. 

 Spartium scoparium. 

 Lotus corniculatus. 

 Euonymus europteus. 

 Rosa spinosissima . 

 Rubus umbi-osus. 

 radula. 



Prunus spinosa. 

 Sedum acre. 



Lonicera periclyinenum. 

 Hedera helix. 

 Galium cruciatum. 



venim. 

 Solidago %argaurea. 

 Hieracium vulgatmn. 

 Achillea millefolium. 

 Callima vulgaris. 



