302 
Greenhouse and Stove Plants. 
ROGIERA, 
and interfere with the next season’s growth. 
They must be wintered at the warmest end 
of the hardwooded house, if there is not 
other accommodation for them; but they 
will do much better if they can be placed 
where they can receive from 40° to 45° in 
the night, until the temperature is brought 
up to that by solar heat, as this Roella 
cannot bear without injury so low a tem- 
perature as many plants indigenous to the 
same country. Tie out nicely, so as to 
keep their branches in the required posi- 
tion, for it is naturally procumbent in 
growth, and if not tied up it will le over 
the pot so as to receive injury and have an 
unsightly appearance. Again, about the 
beginning of March, repot; the strongest 
will bear moving into pots 3 inches larger ; 
to such as are weaker do not give more 
than a couple of inches more room. Now, 
as the plants get stronger, use the soil a 
little more lumpy—it will do broken about 
the size of walnuts. As before, tie the 
branches out to the rim of the pot; after 
potting treat as in the preceding season as 
to water, keeping the house fora few weeks 
a little closer, until the roots have begun 
to take to the soil, and closing with sun- 
heat and moisture. 
It is now time to decide what is to be 
done with the plants in regard to allowing 
all or a portion to flower. If the whole are 
grown simply for decorative purposes, then 
it is best to allow them to bloom, which 
they will do freely from the points of 
every shoot. If some are required to be 
grown on larger, these should again have 
their flowers removed as soon as they are 
formed. Those that are allowed to flower 
may, when in bloom, be removed to the 
conservatory, and placed where they will 
receive plenty of light and not be over- 
crowded ; as soon as they have done flower- 
ing move them back to the hardwooded 
house, and pick all the old flowers off. 
This isa matter of the greatest importance 
with this plant at all times, but more es- 
pecially if they are allowed to open any 
during the autumn or winter ; for if not 
immediately removed after they have de- 
cayed, they begin to mould, and will kill 
almost every shoot right back as far as the 
season’s growth, and very often destroy the 
lant. This is a singular peculiarity to 
which this Roella is subject under cultiva- 
tion ; no doubt owing to the natural con- 
dition of the wood not being calculated to 
resist the effects produced by the confined 
atmosphere of a plant-house, which causes 
the flowers after they have closed to be- 
come mouldy. 
After blooming, grow them on with the 
others that eee “not been allowed to 
flower, treating them as in the preceding 
season in every way, except that none will 
this season require another pot. As 
autumn approaches, again give more air, 
day and night, so as to mature the wood ; 
but not even when they get large must 
they be fully exposed to the open air, as 
the plant does not well bear such treat- 
ment, exposure only aggravating the rusty 
appearance of the leaves, without being of 
any benefit. 
A full crop of flowers will no doubt be 
again formed this autumn, and should be 
removed ; winter the plants in a tempera- 
ture similar to such as recommended the 
previous season, near the glass in a light 
house. In the spring, about the same time 
as heretofore, move again, giving them 
pots, as before, 3 inches larger, which is as 
large a shift as this plant ever requires. 
After they are potted, give the same treat- 
ment as advised for the preceding seasons ; 
they will this year make nice young 
flowering specimens, and may be allowed 
to bloom either for conservatory decoration 
or for exhibition if required, where the 
plants, from their uncommon colour, are 
always effective. If wanted for showing 
later in the season, say about August, they 
will, if all the flowers are taken off in the 
spring, set a second crop later on, which 
will come in about the time indicated. 
Through the autumn and winter keep as 
in the past years, tying them nicely into 
shape ; pot as before, and at a similar time 
in the spring. This season, if all has gone 
well with them, they will be large enough 
to exhibit in any collection of plants, if 
they are required for such purpose ; and 
for the time to come let the general routine 
of their culture be similar to that which 
has been advised through the early stages 
of their existence. 
Insects.—In the cultivation of this 
plant one of the principal things to be 
guarded against is mildew. Whenever 
this makes its appearance sulphur should 
at once be applied. The plant is little 
subject to the attacks of insects. If it 
stands so as to touch others that are 
affected with brown scale, or under a plant 
upon which this insect exists, it will get 
upon it, but does not increase fast, and it 
can be easily kept down by going over the 
plant with a small brush at times. This is 
the oaly insect we have ever seen it troubled 
with. 
ROGIERA. 
These handsome cool stove plants have 
never been so much grown as the beauty 
of their flowers warrants, and where their 
