BORDER PLANTS 51 



marked with five distinct chocolate blotches. The same 

 scheme of colour prevails in the plant sent to me under 

 the name of lusitanicus, which, according to the botanical 

 authorities, is yellow ; it is, however, possibly variable. 

 Salvifolius is a dwarf species with white flowers, and here 

 again the prominent yellow anthers are a conspicuous 

 feature. Crispus differs from the majority of the Rock 

 Roses in having dark crimson or magenta flowers ; it is 

 a dwarf grower. Florentinus is a tall species with white 

 flowers, and must be a form of, or possibly identical with, 

 latifolius. The sun-loving Rock Roses are not perfectly 

 hardy, and on that account growers often take the pre- 

 caution of putting a few cuttings under a hand-light in 

 early autumn and wintering the young plants thus pro- 

 cured under glass, so as to have a reserve in case of 

 necessity. Where they have proved to be safe they may 

 be layered after flowering as they stand. Groups of 

 Cistuses should be used in all dry borders. 



CLARKIA. Whenever opportunities arise of introduc- 

 ing hardy annuals to the herbaceous border, or wherever 

 beds of these beautiful plants are being made, the modern 

 forms of the Clarkia should have consideration. The 

 original species were elegans and pulchella, the former a 

 Calif ornian, the latter a North American plant. Both 

 have been developed by florists, but the most valuable 

 modern forms are varieties of elegans. The ordinary 

 double, flore pleno, is quite worth growing, for it bears 

 long, slender stems of pretty double pale rose flowers, 

 which are excellent for cutting. There are, however, 

 modern forms which are superior, among which I would 

 name Firefly, with scarlet flowers ; Snowball, white ; and 

 Double Salmon. Firefly is the most brilliant, but the 

 colour of the Double Salmon is exquisite, and it may be 



