Mar. 1892.] THE BOTANICAL SOCIETY OF EDINBURGH. 



269 



appearance might be described in the same terms as No. 63. 

 But both were quite eclipsed by the much larger Craigie- 

 hall Turkish Oak, No. 10*, Gh feet in girth in 1890, 

 which in the previous eleven years averaged 0'S8. This 

 tree has a shorter stem, of about 8 or 10 feet, but a more 

 spreading ramification than the others. 



Q. Hex stands free on grass in the grove of young Oaks 

 in the north-west corner of the Arboretum. Although 

 evergreen, it is given here for comparison with the other 

 Oaks. 



Tlie annual rate, 0'63, is probably too low, as the tree 

 was an infant when measurement, which had to be taken 

 low down, began. The rate was steadily increasing till 

 checked in the very late season of 1891, having been 0'40, 

 •55, -80, -85, -50. 



As far as can be judged from the exceptional character of 

 their careers, these three species do not seem to have shared 

 in the misfortunes of Q. Bohur in 1888, but Q. Ccrris had a 

 very small increase i]i 1889. 



TiLIA EUROP^A. 



In the south shelter belt of the Arboretum, somewhat 

 exposed to the north. 



Although these trees are quite healthy-looking, their rates, 

 0'68 and 0'52, are low compared with most forest species ; 

 but that of the older No. 18, at the north end of the belt 

 between the Botanic Garden and Arboretum, was only 0"3-4 

 for fourteen years, although it is only 4 feet in girth, 

 stands tolerably free, and is quite healthy-looking ; that of 

 the still older No. 2, in the centre of the Garden, a 

 handsome symmetrical tree, 6| feet in girth, with a 

 spreading head of dense foliage, but showing signs of 

 failure in some twigs, has been only 0"30 for fourteen years ; 

 and the rate for the same period of the still larger Craigie- 



