652 ARBORETUM AND FRUTICETUM. PART III. 
the others of the genus, can only be considered as ornamental trees; but in 
that character they hold the first rank ; their delicate acacia-like foliage, and 
the singularly varied, graceful, and picturesque forms assumed by the tree, 
more especially when young or middle-aged, together with the singular fea- 
ture afforded by its spines, will always recommend it in ornamental plant- 
ations. 
Soil and Situation, Propagation, &c. Yt requires a deep, rich, free soil, and 
a situation not exposed to high winds; the climate ought, also, to be some- 
what favourable, otherwise the wood will not ripen; and it requires the 
climate of the south of England, or the summers of France, to ripen the 
seeds, The species is always propagated by seeds imported from America, 
or from the south of France, or Italy; for, though seed pods are seldom 
seen hanging from the trees in the neighbourhood of London, or even in the 
south of England, they are produced abundantly in various parts of France, 
even in the neighbourhood of Paris; and seeds are ripened in fine seasons 
in Austria, Cobbett directs the seeds to be prepared for sowing by soaking 
them for 12 hours, as directed for those of the robinia. (See p.624.) The 
seeds, he says, when soaked and sown in March, will come up ina fortnight. 
They are best transplanted to where they are finally to remain when quite 
young; as they make but few fibrous roots, and these take, for the most 
part, a descending direction. The variety G. t. inérmis can only be insured 
by grafting on the species. In general, however, abundance of plants without 
spines may be selected from beds of seedlings of G. triacanthos. 
Statistics. Gledttschia triacdnthos in the Environs of London. At Syon there is a tree 57 ft. high, 
diameter of the trunk 3 ft., and of the head 63 ft. ; see the plate of this tree in Vol. II. In the garden 
of J. Nichols, Esq., (the Chancellor’s, Queen Street,) Hammersmith, there is a tree of this species 
47 ft. high, with a trunk 14in. in diameter, At Purser’s Cross, it is 40 ft. high; at Ham House, 30 ft, 
high. At Kenwood, 38 years planted, it is 44 ft. high; in the Mile End Nursery, 38 ft. high. 
Gleditschia triacdnthos South of London, In Dorsetshire, at Melbury Park, 25 years planted, and 
25 ft. high, the diameter of the trunk 10in. In Surrey, at Lady Tankerville’s, at Walton on Thames, 
60 years planted, and 65ft. high, the diameter of the trunk 2 ft., and of the head 60 ft. 
Gleditschia triacdnthos North of London. In Monmouthshire, at Tredegar House, 50 years planted, 
and 40ft. high. In Oxfordshire, in the Oxford Botanic Garden, 40 years planted, and 30 ft. high, 
the diameter of the trunk 11 in., and of the head 20 ft. In Suffolk, at Ampton Hall, 15 years planted, 
and 25 ft. high. In Warwickshire, at Whitley Abbey, 5 years planted, and 12ft. high. In Wor- 
cestershire, at Croome, 30 years planted, and 40 ft. high, In Yorkshire, at Grimstone, 52 ft. high, 
At Knedlington, 10 years from the seed, 13 ft. high, 
Gleditschia triacdnthos in Scotland. In Berwickshire, at the Hirsel, 6 years planted, and 8 ft. high. 
In Haddingtonshire, at Tyningham, 16 years planted, and 34ft. high. In Ross-shire, at Brahan 
Castle, 20 ft. high, In Renfrewshire, in the Glasgow Botanic Garden, the tree is planted against a 
wall, but is generally killed down to the ground every year. In Sutherlandshire, at Dunrobin Castle, 
16 years planted, 102 ft. high. 
Gledttschia triacdnthos in Ireland. At Cypress Grove, 15 years planted, and 20 ft. high. At 
Terenure, 15 years planted, and 10 ft. high. In Cullenswood Nursery, 20 years planted, and 30 ft. high, 
In Down, at Moira, near Belfast, 55 ft. high, diameter of the trunk 1 ft. 3 in., and of the head 36 ft. 
Gleditschia triacdnthos in Foreign Countries. In France, at Paris, in the Jardin des Plantes, 100 
years planted, and 80 ft. high, and the diameter of the trunk 2 ft. ; in the Botanic Garden at Toulon, 
50 years planted, and 70 ft. high; at Colombier, near Metz, 70 years planted, and 55 ft. high, with a 
clear trunk of 30 ft. ; at Nantes, in the nursery of M. De Nerrieres, 40 years planted, and 50 ft. high. 
In Saxony, at Worlitz, 46 years planted, and 40ft. high. In Austria, near Vienna, at Laxen- 
burg, 40 years planted, and 25ft. high; at Briick on the Leytha, 45 years planted, and 47 ft. high. 
In Prussia, at Sans Souci, 45 years planted, and 50 ft. high. In Bavaria, at Munich, in the Bo- 
tanic Garden, 24 years planted, and 30 ft. high. In Cassel, at Wilhelmshoe, 12 years planted, and 
8 ft. high. In Denmark, at Droningaard, 40 years planted, and 16ft. high. In Sweden, at Lund, 
12ft. high. In Russia, in the Crimea, the tree ripened seeds in 1827, and again in 1828 and 1829, from 
which young plants have been raised. (Mém. de la Soc. Econ. Rar. de la Russ. Mérid., 1. p. 40.) In 
Italy, in Lombardy, at Monza, 29 years planted, and 30 ft. high, 
Gledttschia triacdnthos inérmis. In England, in the environs of London, at Syon, 72 ft. high, di- 
ameter of the trunk 2 ft. 4 in., and of the head 71 ft.: see the plate of this noble tree in our Second 
Volume. In Hertfordshire, at Cheshunt, 8 years planted, and 17 ft. high. In Warwickshire, at 
Whitley Abbey, 6 years planted, and i4 ft. high. In France, at Martefontaine, 46 ft. high; and in the 
Toulon Botanic Garden, 36 years planted, and 50 ft. high. In Saxony, at Wérlitz, 35 years planted, 
and 30 ft. high. In Austria, at Laxenburg, near Vienna, 16 years planted, and 20 ft. high ; at Brick 
on the Leytha, 40 years planted, and 45 ft. high. In Hanover, in the Botanic Garden at Géttingen, 
25 years planted, and 30 ft. high. 
Commercial Statistics. One year’s seedling plants of the species, in the 
London nurseries, are 10s. per1000; trees 6 ft. high, from 2s. to 2s. 6d. each ; 
and seeds are 4s. per packet; and plants of G, t. inérmis are 2s. 6d. each. 
At Bollwyller, plants of the species are 1 franc each; and of G. t. inérmis, 
1 franc 50 cents. At New York, plants of the species are from 25 cents to 
50 cents each, and of the variety, G. t. inérmis, 50 cents; and seeds of the 
species are 1 dollar per lb, 
