120 SYNOPSIS OF 



terminal! aliis vix longiore, corollis exteiioribus 

 fsemineis valde radiantibus. Boiss. 



Hab. Spain, Portugal. Morocco. 



OBS. I found only a few specimens of this species near the Spa- 

 nish lines, and on the neutral-ground ; but it is abundant 

 higher up the sands near Campo. 



Centaurea sphaerocephala, L. 

 C. ccespitosa, Vahl. 



Hab. Spain, Portugal, Sardinia. Egypt. Barbary. 



OBS. Found on the western side of the neutral-ground, and also 

 met with on the lower parts of the rock. 



Centaurea solstitialis, L. 

 Hab. Levant. Britain. 



OBS.. Communicated as the C. veratrum. I found only a few 

 specimens in a waste place, and may have been introduced. 



Kentrophyllum arborescens, Hook. 

 Carthamus arborescens, L. 

 C. hixinus, Lag. 



Vulg. Cardo santo, seu cardo lechero. 

 Hab. Spain. 



OBS. A very common plant in Gibraltar ; and Boissier observes 

 " Cette belle espece donne une physionomie toute partieuliere 

 a la region chaude inferieure.'' The plant in Gibraltar is often 

 seen higher than six feet. 



Galactites tomentosa, Mcench. 



Centaurea galactites, L. 

 Hab. South of Europe. North of Africa. Madeira. 



OBS. Found in great abundance on the middle part of the rock. 

 The var. . integrifolia, " folia integra aut denticulata," is also 

 to be found in Gibraltar. 



