xil INTRODUCTION. 



(Dr. Lemann) ; and nearly as many in the Canary 

 Isles; 160 species in Sicily; more than two-thirds 

 in Malta ; and, according to Seubert's Catalogue, 73 

 species are also indigenous to the Azores. 



The orders which contain the most numerous 

 species are the following : Cruciferae, Caryophylleae, 

 Leguminosse, Umbelliferae, Composite, Boraginea?, 

 Scrophularieae, Labiatse, Gramineae. 



Although there are so many plants in Gibraltar, 

 only one is peculiar to the rock, viz. Iberis Gibral- 

 tarica ; and this too may perhaps some day he found 

 on the opposite coast of Africa. The several plants 

 which owe their specific name to Gibraltar are also 

 found in other parts of Spain, though not so 

 frequently, viz. Cerastium Gibraltaricum, Ononis 

 Gibraltarica, Bupleurum Gibraltaricum, Silene Gib- 

 raltarica. There are a few varieties of species 

 hitherto met with only in Gibraltar, such as the 

 variety of Saxifraga globulifera. It would almost 

 be a work of supererogation to describe the peculiari- 

 ties of each natural order of plants found in Gibral- 

 tar ; this will be best attained by a reference to the 

 Synopsis. I have not thought it necessary to give the 



