278 THE FLORAL WORLD AND GARDEN GUIDE. 
have been sprinkled overhead, and it must be washed off again 
within twenty-four hours afterwards. 
CoLEus anD ALTERNANTHERAS should not be propagated unless 
there is a stove in which to winter them. They soon perish in a 
cold frame or greenhouse after the cold weather sets in. 
Gotpren FearHer should be raised annually from seed, as the 
cuttings give so much trouble in pinching out the flower-buds ; the 
middle or end of September will be quite early enough to sow the 
seed. It is quite hardy, but itis desirable to afford it the protection 
of a cold frame if possible. 
CenTAUREAS.—The feathery C. gymnocarpa should be raised 
from seed if procurable, as the plants raised from cuttings generally 
produce flowers very freely, and are quite useless. C. ragusina does 
not flower so freely as the preceding, yet the cuttings are rather 
difficult to procure, and also to strike at this season of the year. 
This is a capital time for sowing seed of both sorts, as it will quickly 
vegetate, and if the stock is pricked off into small pots the plants 
will be of sufficient size to bed out next spring. These can also be 
wintered in a cold frame, as they are quite hardy, but liable to injury 
from damp if allowed to remain in the open air during the winter. 
Where it is determined to increase the stock by means of cuttings, 
the largest side-shoots must be taken off carefully close to the main 
stem; and after the tops of the largest leaves have been removed 
insert them in the border with the geraniums; but they must, how- 
ever, have more attention. They must be shaded during the first 
week or ten days, and also be sprinkled overhead occasionally. 
CALCEOLARIA cuttings should not be put in until the end of 
September, which will be quite early enough. <A few degrees of 
frost will do them no harm, indeed, they are better without fire-heat. 
The simplest plan to manage the cuttings is to make up a bed of 
soil in a cold frame, and then dibble them rather thickly over the 
surface. They will require sprinkling overhead occasionally during 
the first month, but from thence until the following spring little or 
no water will be required. Sufficient moisture to keep tie foliage 
fresh is all that is necessary, and if more is applied during the winter 
a very large proportion will perish. The frames should be covered 
with mats or litter during the frosty weather, and if the plants 
happen to become frozen the covering should remain on until they 
are thawed, to render the process as gradual as pussible. 
BoRonIA ELATIOR, 2 new and beautiful introduction to the greenhouse, has 
flowered freely in the cool houses at Kew. Fora long time it was very attractive, 
from the rich magenta colour of the buds, which, as they expanded, changed to a 
pleasing pink. It offers a remarkable contrast in colour to the brown flowered 
B. megastigma, which it resembles in its graceful habit of growth. It is a native 
of King George’s Sound, the Darling range, Wilson’s Inlet, and the Franklin River, 
where it is supposed to form a tall shrub. The plants at Kew are about two feet 
high, and the branches bore flowers over nearly their entire length. The flowers 
are as large as those of B. tetrandra,.a closely allied species, and the petais form a 
bell-shaped corolla. 
