429 ARBORETUM AND FRUTICETUM. PART III. 
“M. Maratray, inspector of forests in the department of Mount Jura, 
sent, in 1807, to the Administration of Forests in Paris, a specimen of 
this wood, which justified all that had been said of the fineness and homo- 
geneousness of its grain. He also sent seeds, part of which came up the 
first year, and the remainder the year following. The plants have made 
tolerable progress ; but it remains to be known, whether, in fertile soil, the 
tree will preserve the valuable quality of its wood.” (Traité, Sc.,i. p. 51.) 
The plants have been distributed among the different government gardens 
of France; and particularly those of Versailles, under the direction of 
M. Bosc. At Bollwyller, there are plants of this species which, it is said, 
can be furnished of considerable size ; and they are designated in the Cata- 
logue, “ A’cer opulifolium, non A. O’palus;” price 1 franc 50 cents. 
There was a tree in the garden of the London Horticultural Society, in 
1835, which differed somewhat from A. O’palus, and seemed to us inter- 
mediate between that species and A. barbatum, or, as it was then marked, 
in 1835, A. trilobatum; but, whether it was the A. opulifolium of Villars 
and Baudrillart, we are unable to say. E 
¥ 13. A. circina‘tumM Pursh. The round-/eaved Maple. 
Identification. Pursh F). Amer. Sept., 1. p.267.; Dec. Prod., 1. p. 595.; Don’s Mill. 1. p. 651. 
Engraving. Hook. Amer., t.39.; and our jig. 112., and fig. 127. in p. 454. 
Spec. Char., Sc. Leaves orbicular, rather cordate at the base, 7-lobed, 
smooth on both surfaces ; lobes acutely toothed ; nerves and veins hairy at 
their origins. (Don’s Mill., i.p.651.) A tree from 20 ft. to 40 ft. high. 
112 Wy, Branches slender, pendulous, and crooked ; often 
taking root, in the manner of those of many 
Oo species of Ficus. Bark smooth, green when 
young, white when fully grown. Leaf the 
Z length of the finger, upon rather a short foot~ 
<=. stalk, membranaceous, heart-shaped, with 7—9- 
SS lobes, and 7—9-nerves, smooth above, except — 
“i> hairs in the axils of the nerves; downy be- 
Wane, Ass. neath, and in the axils of the nerves woolly: 
eV Al “S_—ilobes_ ovate, acute, and acutely serrated; the 
“e sinuses acute; the nerves radiate from the tip 
aN. SAV of the petiole, and one extends to the tip of 
ZAIN CAR N each lobe. Flowers (produced in April and 
Capa | SSR ort May) of a middling size, in nodding corymbs, 
| + that are on long peduncles. (Hook. Fl, Bor. 
Amer.) This is a very marked and beautiful species; distinguishable, at 
sight, by the regular form of its leaves, and pale reddish green colour. 
Geography. On the great rapids of Columbia River. (Lewis, in Pursh’s 
Fl. Am. Sept.) Common along the north-west coast of North America, be- 
tween lat. 43° and 49°. (Douglas ; D. Scouler.) A. circinatum, like A. ma- 
crophfllum, is exclusively confined to the woody mountainous country that 
skirts the shores ; and there, among the pine forests, it forms almost impene- 
‘trable thickets. (Douglas, in Hook. Fl. Bor, Amer., vol. i. p. 112.) 
Properties and Uses. The wood is fine, white, and close-grained, very 
tough, and susceptible of a good polish. From the slender branches the 
native tribes make the hoops of their scoop-nets, which they employ for 
taking the salmon at the rapids, and in the contracted parts of the river. 
Statistics. There is a plant of this species, in the London Horticultural Society’s Garden, about 2 ft. 
high ; and one at Messrs, Loddiges’s about the same height, In Berkshire, at High Clere, thereis a 
tree which has blossomed and ripened seeds, . 
zw 14,4. paLma‘tum Thunb. The palmate-/eaved Maple. 
Identification. Thunb. FI. Jap., p. 161. ; Dec. Prod., 1. p. 595. ; Don’s Mill., 1. p. 650. 
Engraving. Tratt. Arch., 1, No. 17.; and our jig. 128. in p. 455. : 
Spec. Char., §c. Leaves smooth, palmately divided into 5—7-lobes beyond 
the middle; lobes acuminated, oblong, serrated. Umbels 5—‘7-flowered. 
(Dons Mill., i. p. 650.) A native of Japan, and introduced in 1832. 
