80 ARBORETUM ET FRUTICETUM BR1TANNICUM. 



glaucous beneath, and in the fruit being much more divergent. Bark of the 

 trunk white. Leaves 3 in. to 5 in. in length, generally wider than long. The 

 buds have a fine ruddy tint, especially in spring before they expand. The tree 

 in England is rather tender, and never attains a large size ; but in America the 

 timber is valuable, and the sap produces sugar. American seeds. 



8. A. PSEU^DO-PLA'TANUS L. The Mock Plane Tree, the Sycamore, or 



Great Maple. 



Identification. Lin. Sp., 1409. ; Don's Mill., 1. p. 648. 



Synonymcs. Plane Tree, Scotch ; E'rable Sycamore, E'rable blanc de Montagne, fausse Platane. 



grand E'rable, Fr. ; Ehrenbaum, weijser Ahorn, gemeine Ahorn, Ger. ; Acero Fico, Ital. 

 Enaravings. Duh. Arb., 1. t. 36 ; Schmidt Arb., 1. p. 34. ; the plate of this species in Arb. Brit, 



1st edit., vol.v. ; our fig. 132. ; and fig. 153. of the leaves, of the natural size, in the plate form. 



ing p. 110, 111, 



Spec. Char., fyc. Leaves cordate, smooth, with 5 acuminated, unequally 

 toothed lobes. Racemes pendulous, rather compound ; with the rachis, as 

 well as the filaments of stamens, hairy. Fruit smooth, with the wings 

 rather diverging. (Don's Mill ) A deciduous tree of the first rank. 

 Europe and Britain, in wooded mountainous situations. Height 30 ft. 

 to 80 ft. Flowers greenish yellow, mostly hermaphrodite ; May and June. 

 Keys reddish brown ; ripe in October. Decaying leaves brown, with dark 

 blotches. Naked young wood reddish brown. Buds 

 large, green, or tinged with red. 



Varieties. 



*t A. P. 2 opulifolia. A. opulifolium Hort. ; A. 



trilobatum Hort. ; A. barbatum Hort. (Our 

 Jig. 132.) Leaves and fruit smaller than 



in the species, as shown in fig. 155. of the 



leaves, in the plate forming p. 1 14. We have 



no doubt of this being the A, opulifolium 



of Thuiilier and Villars, L'E'rable duret,and 



L'E'rable ayart, Fr., which is said by these 



authors to resemble A. Psjudo-Platanus, but 



to be much smaller. It is a native of the 



Alps and Pyrenees. Introduced in 1812. 



Height 15 ft.' to 20 ft. 

 *f. A. P. 3 longifolia. A. longifolium Booth. Leaves 



more deeply cut, and the petioles much 



longer than in the species. Altogether a tree of very remarkable 



aspect. 

 A. P. 4 Jldvo variegdta. A. P. lutescens Hort. ; the Corstorphine 



Plane. Leaves variegated with yellow. The original tree stands 



near an old pigeon-house in the grounds of Sir Thomas Dick 



Lauder, Bart., in the parish of Corstorphine, near Edinburgh. Seeds 



of this variety, sown, have produced plants with the character of the 



parent to a certain extent. 



* A. P. 5 albo variegdta Hayne. Of all the variegated varieties of ^4 N cer, 



it must be acknowledged that this is the most ornamental ; especially 

 in spring, when the leaves first expand. 



* A. P. Spurpiirea Hort. Leaves of a fine purple underneath. This 



variety was found in a bed of seedlings, in Saunders's Nursery, 

 Jersey, about 1828, and is now to be met with in all the principal 

 nurseries. The tree has a very singular effect when the leaves are 

 slightly ruffled by the wind, alternately appearing clothed in purple 

 and in pale green. In spring, when 'the leaves first expand, tht 

 purple bloom is less obvious than when they become matured, at 

 which time it is very distinct. 



Other Varieties. In the garden of the Hort. Soc. there is a variety called 

 Hodgkins's Seedling, with yellow-blotched leaves ; and another, called ^Leslie's 



