~ 
£90 ARBORETUM AND FRUTICETUM. PART III. 
high, In Saxony, at Wdrlitz, 45 years planted, and 25 ft. high; and the variety P. t. pentaphflla, 
34 years planted, and 15 ft. high., In Austria, at Vienna, in the University Botanic Garden, 15 ft. 
high. In Bavaria, at Munich, in the Botanic Garden, 24 years planted, and 18 ft, high. 
Commercial Statistics. Plants,in London, cost 1s. 6d. each, and seeds Is. a 
packet; at Bollwyller, plants 15 francs a hundred; at New York, 25 cents 
each, and seeds 1} dollar a quart. 
App. i. Other ligneous Species of Ptélea, hardy and half-hardy. 
 P. monophglia Lam. has simple ovate lanceolate leaves, and grows to the height of 4ft. in Caro- 
lina; but, though hardy, it has not yet been introduced. 
% P. pentandra Moc. is a native of Mexico, where it forms a shrub from 6 ft. to 10 ft. in height ; 
P. podocaérpa Dec. is a Mexican shrub of the same size; and P. ovdta Lour. is a simple-leaved spe- 
cies, a native of Cochin-China, ‘These, if introduced, would probably prove hardy or half-hardy. 
Genus III. 
AILA NTUS Desf. Tue Artanto. Jin. Syst. Polygamia Monce'cia. 
Identification. Desf. Act. Acad. Par., 1786., p. 263.; Dec. Prod., 2p. 88.; Don’s Mill., 1. p. 807. 
Synonymes. Rbts Ehrh., Ellis, and Meench ; Verne du Japon, Fr. ; Gotterbaum, Ger. 
Derivation. Ailanto is the name of A7lantus glandulosa Desf. in the Moluccas. It was long con- 
sidered as a species of Rhis, whence the French name; and the meaning of the aboriginal word 
being, it is said, Tree of Heaven, hence the German name, Gétterbaum, Tree of the Gods. 
* 1, A, GLANDULO‘SA Desf. The glandulous-leaved Ailanto. 
Identification. Desf. Act. Acad. Par., 1786, p. 263.; Dec. Prod., 1. p. 89.; Don’s Mill., 1. p. 807. 
Synonymes. A. procéra Sal. Prod., p. 271.; Rhus hypselodéndron Meench; R. cacodéndron Efrh, ; 
R. sinénse Ellis; Aylanthe glanduleux, Fy.; driisiger Gotterbaum, Ger. ~ 
Engravings. L’Herit. Stirp., t. 84.; Wats. Dend. Brit., t.108.: N, Du Ham., 1. t. 35. ; our fig. 159.5 
’ and the plate of the tree in our Second Volume. 
Spec. Char.,§c. eaves impari-pinnate ; the 159 
leaflets coarsely toothed at the base; the 
teeth glandulous on the under side. (Dee. 
Prod., i. p. 89.) A deciduous tree of the 
first rank, introduced from China in 1751, 
and growing to the height of 60 ft. or up- 
wards. In some years, the tree is said to 
bear only male flowers; and L’Héritier /} 
states that only twice in 10 years it bore 
both male and female flowers at the saine 
time in France. In his time, it had pro- 
duced fruit in the Jardin des Plantes at 
Paris, and in the Botanic Garden at Ley- 
den; but in both cases it was immature. 
It has since, however, produced perfect - 
fruit, from which plants have been raised. 
It has also ripened fruit at White Knightsin England. The flowers, which 
appear in August, are in large, upright, rather compact panicles, of a whitish 
- green colour, and exhale a disagreeable odour. The fruit resembles the 
keys of the ash, but is smaller. The leaves are from 3 ft. to 6 ft. in 
~ length ; those produced by vigorous suckers, in favourable situations, attain- 
ing the latter dimensions. The tree grows with great rapidity for the first 
- 10 or 12 years, producing shoots from 3 ft. to 6 ft. in length at first, and 
attaining the height of 15 ft. or 20ft. in 5 or 6 years in favourable situ- 
ations. Afterwards its growth is much slower. The wood is of a fine 
- grain; it has a satiny aspect, and is hard, and well fitted for the purposes. 
of cabinet-making. The tree has a noble appearance when clothed with 
- leaves; and its gigantic boughs and shoots, and its straight, erect, thick 
