548 



EXOCHORDA 



racemes 3 to 4 ins. long ; stamens in five groups of five each. Fruit composed 

 of five flattened, two-edged divisions, each % to f in. long, arranged starwise. 

 Flowers in May. 



Native of Turkestan, where it was discovered in the eastern part of 

 Bokhara by Mr Albert Regel, at altitudes of 4000 to 6000 ft. It is very 

 hardy, and more robust in habit than E. grandiflora, from which it differs 

 in the greater number of stamens, in the smaller flowers, and larger fruits. 

 The plant became generally known in cultivation in 1886 through Prof. Regel 

 of St Petersburg, but it had previously been grown as E. Korolkowi x at the 

 Segrez Arboretum in France by MrLavallee, who sent it to Kew in 1881 under 

 that name. 



E. GIRALDII, Hesse. 



This species appears to have been introduced to Europe by means of seeds 

 sent by Pere Giraldi. Mr Hermann Hesse, of Weener, in N.W. Hanover, who 



first distributed it from his nursery, 

 describes it as a very fine, vigorous- 

 growing shrub, with pink young shoots ; 

 the leaf-stalks and veins are also pink- 

 ish, and remain so through the summer. 

 The raceme is terminal, erect, and^ 

 carries six to eight flowers, each of 

 which is over 2 ins. across ; petals pure 

 white, obovate, I in. long and ^in. wide. 

 Calyx with a red margin. This Exo- 

 chorda appears to be allied to, probably 

 a variety of, E. grandiflora, but is, per- 

 haps, an even superior shrub for gar- 

 dens, but I have not yet seen it in 

 flower. Introduced to England in 1909. 

 Native of N. and W. China. 



E. GRANDIFLORA, Lindley. 



(Spiraea grandiflora, Hooker, Bot. Mag., 

 t- 4795-) 



A deciduous shrub of rounded, bushy 

 form, up to 10 ft. high, with smooth 

 branchlets. Leaves narrowly obovate, 

 1 1 to 3 ins. long, about one -third as 

 wide ; short-pointed or rounded at the 

 apex, tapering at the base, quite smooth, 

 the margin entire, or toothed towards 

 the apex. Flowers pure white, ij to ii 

 ins. across, produced on erect racemes 

 3 to 4 ins. long ; petals five, obovate ; 

 calyx i in. across, with five rounded lobes. Stamens fifteen, in five groups of 

 three each. Fruit composed of five flattened, two-edged, bony divisions, each 

 \ in. long, arranged starwise. 



Native of N. China ; introduced by Fortune about 1849. I* flowers in May, 

 and even at that season is one of the most strikingly beautiful of shrubs. The 

 white racemes are produced at the end of short lateral twigs from the branches 

 of the previous year, and thus transform each branch into one huge snow-white 

 inflorescence, sometimes 12 to 18 ins. long and 8 to 10 ins. wide. In order to 

 obtain these fine sprays the shrubs, as soon as they have flowered, should be 

 thinned out ; the young shoots should be much reduced in number by weeding 

 out all the weaker ones, especially where they are likely to be overcrowded. 



EXOCHORDA GIRALDII. 



