GIBRALTAR PLANTS. 83 



plants. I believe it may hereafter be found that this plant is 

 the D. sylvestris of Wulf, which Boissier found in Alhaurin, 

 Monda, &c., for it differs in a few points from the D. caryo- 

 phyllus of Desf.* 



Dianthus prolifer, L. 

 Hab. Europe, Britain. Barbary. 



OBS. Not common on the rock, but found in great abundance on 

 the Queen of Spain's Chair and Cork-wood. 



Silene bipartita, Desf. 



Hab. Italy, Greece. Canaries. Barbary. 

 Silene nicaeensis, All. 



Hab. Greece, Spain. Barbary. 



OBS. Generally with white flowers ; one of the few plants cha- 

 racteristic of the vegetation of the neutral-ground ; found also 

 in great abundance on the sandy bank on the road to Catalan- 

 bay. 



Silene velutina, Pourr. 

 Hab. South of Spain, Corsica, Majorca, &c. 

 OBS. Found on the higher parts of the rock. 



Silene Gibraltarica, Boiss. 



Boiss. tab. xxvi. A. 

 Hab. Gibraltar (rare). 



OBS. Before I had access to the work of M. Boissier, on ' The 

 Plants of Spain,' I considered this species as only a variety of 

 the Silene velutina, to which it bears a strong resemblance; but 

 on obtaining fresh specimens, through the kindness of Lt. 

 Scott, R. E., I was enabled to determine its specific characters. 



* Since writing the above remarks, I have compared the Gibraltar 

 plant with specimens of D. sylvestris in Sir W. Hooker's collection, and 

 found it to correspond. 



G 2 



