9 8 Ru tacece Citrus. 



hermaphrodite, very fragrant. The fleshy fruit is too well 

 known to need description. There are only about five species, 

 from tropical Asia, but the varieties are almost interminable. 



1. G. Aurdntium (fig. 63), Common Orange. Neither 

 this nor any species or variety of the genus is quite hardy in 

 this country, though in some parts of Devonshire they succeed 

 with slight protection. Formerly, when there was less variety 

 in ornamental shrubs, they were more frequently grown in 

 tubs or large pots in the conservatory, and removed into the 

 open air during the Summer months. 



ORDER XXVIII. SIMARUBE.ffi. 



A small order of shrubs or trees closely related to the 

 Rutacece, except that the leaves are usually alternate and desti- 

 tute of immersed glands, and the cells of the ovary uniovulate. 

 The following is the only genus coming within our province. 



1. AILlNTHUS 



Leaves unequally pinnate. Flowers small, polygamous, in 

 terminal panicles. Calyx equally 5-lobed, imbricate. Petals 

 5, spreading, induplicate-valvate. Disk 10-lobed. Stamens 

 10 ; in the female flower none, in the hermaphrodite 2 or 3. 

 Fruit of 1 to 5 linear-oblong 1 -seeded samaras. There are 

 two species besides glandulosa, one of which is common 

 throughout the tropics. The native name of the following 

 species is Ailanto, literally Tree of Heaven. 



1. A. glandulosa. A tall handsome fast-growing tree with 

 large pinnate deciduous leaves 1 to 2 feet long. Leaflets 9 to 

 25, deeply toothed or lobed. Fruit red when ripe. This is 

 one of the most distinct and desirable of ornamental trees with 

 pinnate foliage in cultivation, and thrives well in the neigh- 

 bourhood of the sea. It is a native of Japan and Mongolia. 



ORDER XXIX.-MELIACE.ffi. 



A considerable order of trees and shrubs, chiefly from the 

 tropics, and only represented in our gardens by one hardy 

 Japanese species. The principal distinctive character is in the 

 stamens, the filaments being united in a tube with the anthers 

 sessile or stalked within the summit. 



