462 ARBORETUM AND FRUTICETUM. PART III.: 
de Buffon, which gave an excellent idea of their appearance in their native forests; the highest 
these trees now remaining, estimated at upwards of 60 years of age, are 51ft. in height, with 
heads 54ft. in diameter. At Toulon, in the Botanic Garden, a tree 20 years planted, is 50 ft high. 
In Saxony, at Worlitz, a tree, 65 years planted, is 40 ft. high. In Austria, in Held’s Nursery, at 
Vienna, 20 years planted, and 25 ft. high; at Briick, on the Leytha, 48 years planted, and 80 ft. high, 
with a head 48 ft. in diameter, close by water. In Prussia, at Sans Souci, 45 years planted, 24 ft.’ 
high, In Bavaria, at Munich, 24 years planted, and 30 ft. high. In Hanover, in the Botanic Garden. 
at Gottingen, 20 years planted, and 40 ft. high. 
Commercial Statistics. In London, plants of the species are 1s. each, of the 
variety NV. f. crispum Is. 6d. each, and seeds of the species 4s. a quart. At 
Bollwyller, plants of the smallest size of the species are 50 cents each, and 
larger plants 2 francs. At New York, plants are 25 cents each, and seeds 
1 dollar a quart. 
App. i. Anticipated Species of Negindo. 
* N. mexicanum Dec. is a native of Mexico, with trifoliate leaves, which grows to the height of’ 
40 ft. It has been described under the name of A. ternatum Moc. ; and also by De Candolle, who 
expresses a doubt as to whether it may not be a variety of N. fraxinifdlium. Seeds or plants of it 
ought, if possible, to be obtained from Mexico. 
* N. cochinchinénse Dec. is a doubtful species, probably belonging to Sapindacee rather than 
Aceracee. It is atree 25 ft. high, in the woods of Cochin-China, and would form a very desirable ad-" 
dition to the British arboretum. A variety of N. fraxinifdlium (the leaves having their two lower 
and their terminate leaflets ternate) is mentioned by Dr. Hooker, as having been received by him 
from Dr. Schwinitz in the state of dried specimens. (Fl. Bor. Amer., i. 114.) 
App. I. Other Acerdacea. 
Dobinea vulgaris Hamilt. (altered from the Nepalese name), a shrub 6ft. high, a native of Nepal, 
with elliptical, oblong, acutely serrated leaves, is, in all probability, hardy, and would add to the 
variety of British collections. There no other species of this genus, and no other genus belonging 
to the order AcerAacez has been yet discovered and recorded,*either hardy or tender. 
CHAP. XXIII. 
OF THE HARDY TREES AND SHRUBS OF THE ORDER AZSCULA‘CER.’ 
Identification. Lindl. Key. 
Synonymes. Castaneacee Link; Hippocastanee Dec. 
Distinctive Character. Calyx campanulate, 5-lobed. Ovary roundish, tri- 
gonal. Seeds large and globose; albumen wanting. Embryo curved, inverted, 
with fleshy, thick, gibbous cotyledons not produced above ground in germin- 
ation. Plumule large, 2-leaved. Deciduous trees, with opposite digitate leaves. 
The fruit large and bitter, sternutatory, abounding in potash and starch. The 
bark astringent and tonic; and the fruit containing esculine, a febrifuge. 
The genera are two, which are thus contradistinguished : — 
4'scutus L. Capsule echinated. 
Pa‘vi4 Boeh. Capsule smooth. 
Genus I. 
4E'S8CULUS L. Tue Horsrcuestnut. Lin, Syst. Heptandria Monogynia, 
ny cation. Lin. Gen., No, 462.; Hayne Dend., p.43.; Dec. Prod., 1. p. 597.; Don’s Mill, 1. 
Si mes. Hippocastanum Tourn. ; Marronier d’Inde, Fr.; Rosskastanie, Ger. 
erivation. The word ’sculus, derived from esca, nourishment, is applied by Pliny to a species of 
oak. which had an eatable acorn, The word Hippocéstanum, from /zppos, a horse, and castanea, 
