ON TREES AND SHRUBS. 379 



.5ft. from the ground, it forms a pretty weeping shrub ; but when 

 grown on its own roots, it rarely attains more than a few inches 

 high; for which reason it should always find a place in the rock 

 garden. C. p. albus is a white-flowered form of the last-named, 

 and quite as hardy. C. shipkaensis has clusters of pure white 

 flowers at the apex of the growths, which are very useful for 

 cutting. C. austriacus ( C. banaticus) forms a neat bush, 2ft. 

 high, with clusters of yellow flowers from July to September. 



C. Ardoini is fine for • the rock garden, as it is of dwarf habit 

 and very free-flowering. C. kewensis {C. Ardoini v C. albus) is 

 quite prostrate or creeping in habit, and bears its cream-white 

 flowers freely ; it is a beautiful rock shrub. C. purgans is an 

 uncommon garden shrub ; less vigorous in growth than C. pracox. 

 It is a native of South-West Europe, and although introduced 

 to this country as long ago as 1768, it is even now rarely 

 met with. It is a neat, low-growing species, and in May. and 

 June, when laden with its golden-yellow blossoms, is very 

 pretty. 



Daphnes.- — The type of the deciduous group, D. Mezereum, is 

 a European shrub of great value in the garden in early spring, 

 and one deserving of more extended culture for its delightfully 

 fragrant reddish-purple flowers, which are produced so abundantly 

 along the whole length of every branch. It loves a cool, moist 

 soil and an open position, but it is by no means averse to 

 partial shade. Beautiful effects are obtained when planted in 

 groups on the grass, using as a carpet such things as Gaultheria 

 procumbens and Butcher's Broom. There axe a few excellent 

 varieties differing from the type in the colour of the flowers and 

 the time of flowering, the yriTrcipal of which are D. M. flore-albo 

 (white) and D. M. grandiflora (autumnalis) (bright red). The 

 flowers of the last-named sometimes appear in October, and if 

 the winter is mild a display of blossom is kept up until spring. 



D. Genkwa (D. Fortunei) is a beautiful and uncommon 

 Japanese species, with long, slender, gracefully-arching shoots, 

 upon which are borne sweet-scented lilac-coloured blossoms in 

 early spring. This is well adapted for forcing into flower for 

 conservatory decoration during the dull winter months. 

 D. alpina is a pretty alpine species, suitable for the rock garden, 

 as it rarely exceeds 2ft. in height. It is a close-growing, much- 

 branched shrub, and in March and April produces its small, 

 fragrant, blush-coloured flowers. 



Deutzia. — Though not large, this genus contains several easily- 

 grown and handsome-flowering shrubs. D. crenata {D. scabrd) 

 grows in good soil to a height of about 8ft., and when its shoots 

 are laden with racemes of pure white flowers its beauty is 

 evident. The double white flowers of D. c. flore-pleno are 

 suffused with purple, and borne very freely. D. c. Pride of 



