422 ARBORETUM AND FRUTICETUM. PART III. 



" M. Maratray, inspector o r 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." (Traite, Sfc., i. p. 61.) 

 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 s 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. 



t 13. A. circina v tum Pursh. The vovmArleaved Maple. 



Identification. Pursh Fl. Amer. Sept, 1. p. 267. ; Dec. Prod., 1. p. 595. ; Don's Mill., 1. p. 651. 

 Engraving. Hook. Amer., t. 39. ; and our fig. 112., and fig. 127. in p. 454. 



Spec. Char., fyc. Leaves orbicular, rather cordate at the base, 7-lobed, 

 smooth on both surfaces ; lobes acutely toothed ; nerves and veins hairy at 

 their origins. (Bon's Mill., i. p. 651.) A tree from 20 ft. to 40 ft. high. 

 Branchesslender, pendulous, and crooked; often 

 taking root, in the manner of those of many 

 species of i^icus. Bark smooth, green when 

 young, white when fully grown. Leaf the 

 length of the finger, upon rather a short foot- 

 stalk, membranaceous, heart-shaped, with 7 — 9- 

 lobes, and 7 — 9-nerves, smooth above, except 

 hairs in the axils of the nerves ; downy be- 

 neath, and in the axils of the nerves woolly : 

 lobes ovate, acute, and acutely serrated ; the 

 sinuses acute; the nerves radiate from the tip 

 of the petiole, and one extends to the tip of 

 each lobe. Flowers (produced in April and 

 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- 

 crophyllum, is exclusively confined to the woody mountainous country that 

 skirts the snores ; 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 Clerc, there is a 

 tree which has blossomed and ripened seeds. 



at 14. A. palma v tum Thunb. The palm -ite-leav ed Maple. 



I'lnWfication. Thunb. Fl. Jap., p. 161. ; Dec. Prod., 1. p. 595. ; Don's Mill., 1. p. 650. 

 Engraving. Tratt. Arch., 1. No. 17. ; and our fig. 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. 

 (Don's Mill., i. p. 650.) A native of Japan, and introduced in 1832. 



