2*26<^ 



ARBORETUM AND FRUTICETUIVI. 



2161. 



PART III. 



Christiana, at TenerifFe, attained the height of 15 ft. without any protection, 

 and remained uninjured till the severe spring of 1830, when the top was com- 

 pletely destroyed. In the early part of the summer of that year, however, 

 the trunk threw out two or three shoots, a few inches above the collar, and, 

 the dead part above it being cut off, these shoots have grown vigorously ever 

 since ; and one of them, having taken the lead, promises to make a hand- 

 some plant. A tree of the same age in Dr. Percival's garden at Annfield, 

 near Dublin, met with a similar fate at the same time; but has now become 

 as handsome a plant as it was before the accident. — J. T. M. August ^ 1837." 

 Geography, History, %c. P. canadensis is a native of the islands of 

 Teneriffe and (irand Canary ; where it forms extensive forests, from the 

 sea shore to an altitude on the mountains of 6700 ft. ; though it is most 

 abundant between 4080 ft. and 5900 ft. above the level of the sea, which may be 

 considered as the pine region of these islands. This \m\G has been long noticed 

 by travellers who visited Teneriffe j but it was contbundcd with P. maritima, 

 P. Tac^da, and even Lk\\x europaj^a, till the name of the species was settled 

 by Professor Smith of Christiana. In its general a|)i)earance, Messrs. Webb 

 and Berthollet observe, P. canariensis resembles the European species; and 

 the first view of a pine forest in the (Janaries is very similar to that of a 

 pine forest on the Alps. Under these gigantic trees, the soil is dry and 

 poor ; and very few plants grow beneath their shade. The pines grow on the 

 margins of the valleys, and on the steep slopes and rugged precipices which 

 form the sides of the mountains, but not on their summits. (Hit/. Nat. dc 



