106 SYNOPSIS OF 



Cotyledon umbilicus, var. . L. 

 Vulg. Sombrerillos. 

 Hab. Europe, Britain. 



OBS. Found in fissures of rocks and caves, as also on old walls 

 and roofs of houses. 



/ Sedum album, L. 



Hab. Europe, Britain. 



Sedum altissimum. Poir. 

 Hab. South of France, Spain, Greece, Italy. 



OBS. A Sedum resembling the S. arenarium is also said to grow 

 on the rock, which I have not seen. 



Sempervivum arboreum, DesJ. 



Hab. Portugal. Crete. North of Africa. 



OBS. A good plate of this plant is given in Sibth. Fl. Gr. This 

 elegant plant grows in great abundance on the elevated sides 

 of the rock, near the naval hospital, and on the road to Europa- 

 point, near Clapham quarters. Its yellow blossoms, supported 

 upon long foot-stalks, give a peculiar character to the early 

 vegetation of the south part of the rock. 



FICOIDE^. Jms. 



<\- Mesembryanthemum Aitoni, Jacq. 

 Hab. Cape of Good Hope. 



OBS. Extensively cultivated in Gibraltar, and forms an elegant 

 ornament to the walls of the hanging-gardens of Calpe. I 

 should not be surprised if this plant were to extend itself, 

 like some others, to higher parts of the rock. I found a small 

 specimen of it in a fissure above St. George's Hall ; I have 

 therefore introduced this plant in this catalogue, contrary to 

 the arrangement of excluding cultivated ornamental flowering 

 plants, with which every garden abounds. I have heard it 

 stated, that the Meserabryanthemum nodifloruin, L., is to be 

 found in Gibraltar. 



