Ailantus glandulosa, 
THE GLANDULOUS-LEAVED AILANTUS. 
Synonymes. 
Atlantut, gianauMsa, 
Ailantus procera, 
Aylante glanduleux, Tilou, 
Driisiger Gotterbaum, 
Ailanto, Albero di Paradiso, 
Ailantus, Tree of Heaven, 
Desfontaines, Actes, etc., Paris, 1786. 
De Candolle, Prodromus. 
Loudon, Arboretum Britannicuui. 
Salisbury, Prodromus. 
France. 
Germany. 
Italy. 
Britain and Anglo- America. 
wards, 
from two 
erect, 
Engravings. L'Heritier, Stirpes, pi. 84 ; Du Hamel, Traite des Arbres et Arbustes, i., pi. 35 ; Loudon, Arboretum Britanni- 
cum, I., figure 159, et v., pi. 60 ; and the figures below. 
Specific Characters. Leaves impari-pinnate ; the leaflets coarsely toothed at the base ; the teeth glandu- 
lous on the under side. De Candolle, Prodromus. 
Description. 
iHE Ailantus glan- 
dulosa is a decid- 
uous tree of the 
first rank, grow- 
ing to a height of 
sixty feet and up- 
column-like trunk, 
diameter, its gigantic 
boughs and shoots, clothed with large, pendulous 
leaves, give it a noble appearance, and seem to 
justify the oriental appellation, " Tree of Hea- 
ven." The leaves are from one and a half to 
six feet in length, pinnated, with an odd one, 
and having leaflets with coarse, glandular teeth 
near the base. On the first approach of frost, 
the leaflets begin to fall, without having previ- + 
ously shown much change of colour, displaying, 
in this respect, a striking difference from the leaves of most species of rhus, to 
which those of this tree bear a general resemblance. The flowers, which appear 
in June and July, occur in rather large, compact panicles, of a whitish-green 
colour, and exhale a disagreeable odour. The keys, or fruit, resemble those of 
the ash, but are much smaller and more numerous. In some years, the tree is 
said to bear only male flowers; and L'Heritier states that only twice in ten 
years it bore both male and female blossoms at the same time, in France. In 
his time, it had produced fruit in the Jardin des Plantes, at Paris, and in the 
botanic garden at Leyden ; but in both cases it was immature. It has since, 
however, produced perfect fruit, from which plants have been raised. It has 
also ripened seeds at White Knight's, near Reading, in England. At Philadel- 
phia and New York, the seeds of this tree ripen freely in October, and plants are 
raised from them in abundance. 
Geography and History. The Ailantus glandulosa is a native of the northern 
provinces of China, more particularly in the neighbourhood of Pekin. Mr. Lou- 
don states that seeds were first sent to England, to the Royal Society of London, 
