THE FLORAL WORLD AND GARDEN GUIDE. 323 



be erected a rather spacious glass structure, for the aecoininodation 

 of those trees that are not hardy enough to withstand the effects of 

 a severe winter. No heating apparatus will be necessary ; for any- 

 thing requiring more protection than that afforded by the glass 

 covering would be altogether out of place in an arboretum. Staging 

 also will not be required, for the trees will mostly be of a sufficient 

 height to produce a good effect grouped upon the floor. 



In the preparation of a list of trees for the " Amateur's 

 Arboretum," I have been careful to exclude those trees which are of 

 so robust a character as to be only adapted for parks, where size is 

 of some importance. Most of the trees also that will be men- 

 tioned are well adapted for planting singly, or in groups, in the 

 dressed pleasure grounds surrounding the residence. They are as 

 follows : — 



Acer negundo varlegata is now irell known as one of the most 

 distinct and striking of hardy trees with white variegations. It is 

 very effective, either in the form of a bush or tree, and one or two 

 bold masses of six or eight trees are much better than single trees 

 scattered over the pleasure ground or the arboretum. 



A. palmatum is a small-growing Japanese tree, with elegant 

 palmate leaves. The variety of this known as reticulatuni has 

 bright green leaves, veined with yellow, and at certain stages is very 

 beautiful. 



A. polymorphum ijalmatiJicUum, like the preceding, is of small 

 growth, and has rich green leaves which are deeply and elegantly 

 cut. There is not perhaps a more beautiful small-growing tree in 

 existence, as will be seen on reference to the striking illustration 

 to which these remarks are an accompaniment. 



A. p. airopurpureum is similar in character to the preceding, witb 

 foliage of deep bronzy purple. 



A.2}- sanguineum has foliage of a bright reddish-crimson colour. 



A, p. ornatum is a fine variety, with rich brownish-red leaves. 



A. p. roseis marginatis differs from the variety immediately pre- 

 ceding it in having the leaves margined with red and white, and any- 

 thing more beautiful cannot be conceived. 



All tbe varieties of Polymorphum may be grown in pots for con- 

 servatory or dinner-table decoration. In the pleasure ground they 

 should be planted in groups in sheltered situations, and where they 

 will be immediately under the eye. Owing to their comparative 

 scarcity, their relative hardiness has not yet been thoroughly 

 tested. 



AilantJtus glandtdosiis, a noble tree, with bold pinnate foliage, 

 deserving the heartiest recommendations. Large buhhes, formed by 

 planting young trees and annually cutting them close back to the 

 ground, have a handsome appearance in the pleasure ground. When 

 this is done they push up strong shoots furnished with grandly 

 developed leaves, and in beauty are equal to the finest of the strong- 

 growing ferns. 



Aralia canescens ia exceedingly beautiful when kept to a single 

 stem. The leaves are large, much divided, and very handsome. It 

 iB an excellent plan to cut it down annually, as in the case of the 



November. 



