,360 The Scottish Naturalist. 



Arabis sagittata. 



Dorrery, rare. Cliffs at Dirlot. Dick herb. 

 t Cheiranthus Oheiri. R. Dick in Watson's MS.S. 

 Oardamine pratensis, 



Abundant ; double flowers not infrequent. 



C. hirsuta. 



Yarrows Hills ! Near Thurso. Strom/elt; Dunbeath, Wick. 



C. flexuosa. 



Shady and elevated places. Yarrows Hills. ! 

 Draba incana. 



Yarrows Hills ! Yarehouse, Forss Water. Lath eron wheel ! 

 Dunbeath. Berriedale, rocky ledges amongst hills or by 

 the sea. 

 Erophila vulgaris. 

 Local, often near houses. 



Cochlearia officinalis. 



Common. Cliffs south of Wick. Revd. E. Marshall ! Lybster. I 



0. alpina. 



Sea cliffs at Lybster, and muddy banks of Wick River near 

 mouth. ! 



Caithness, R. Dick. 

 Sisymbrium Thaliana, Rocks ; Lybster. 



Hedge sides, very rare and local. Abundant near Thurso. 

 Dick herb. 

 S. officinale. Hedge sides near the cemetery, Thurso, 

 t S. Sophia, On ballast, Thurso sea shore, 1855. Dick herb. 

 Capsella Bursa-pastoris. Plentiful everywhere. 

 t Camelina sativa. R. Dick in Watson's MS.S. 

 Senebiera Coronopus. 



Waste ground, not common. On ballast, Thurso. Dick herb. 

 Thlaspi arvense. 



Rather local, the parish of Dunnet being the only district 

 where it is at all common. 



Cakile maritima. 



Murkle Bay. F.J. Hanbury, Sandy seashores, Keiss, Dun- 

 net, and Freswick. Wester Links, Wick ! 

 Sinapis arvensis. 



Abundant. 



Raphanus Raphanistrum. 



Abundant. 



