Ailantus 
glandulosa 
88 ARBORETUM NOTES. 
ZANTHOXYEACEA:. 
AILANTUS GLANDULOSA. 
Loudon, v. 1, 490. 
Thrives extremely well here. The largest and 
oldest tree we have of the kind stands on the 
east side of the pleasure ground. It was planted 
1826, and measures three-and-half feet in cir- 
cumference at three feet from the ground. Most 
of the trees of Ailantus growing here, flowered 
very abundantly in August last year (1861), and, 
what is unusual, the greatest part of the flowers 
they bore were hermaphrodite, with well formed 
and fully-developed pistils as well as stamens. A 
considerable number of fruits were formed, but 
all dropped off before coming to their full size. 
The oldest tree here—the one I have already 
particularly mentioned—flowered more sparingly 
than most of the others; probably because 
growing in a more shady situation. The flowers 
are of a very pale yellowish-green, or greenish- 
yellowish-white colour; the petals fall very 
quickly. 
The Ailantus glandulosa is much cultivated for 
ornament (in company with the Catalpa, Robinia, 
Melia azedarach, and Acer negundo), in the 
gardens and public walks of Rome and Florence, 
where it grows to a very large tree, and flowers 
and fruits most abundantly. In the latter end 
*This has been much damaged by a gale of wind in 1869 
