248 THE ORCHID REVIEW. 
The Cattleya and Intermediate Houses likewise require a continuance of 
the treatment last recommended. Cattleya Gaskelliana is now in full 
beauty, and after blooming, the plants may be repotted, if necessary, with 
good results, or they may be left until early spring and then done. C. Rex 
is nearly over, and may be repotted and removed from the warm house 
to the Cattleya House; they are best grown in baskets or pans suspended 
from the roof. The repotting of C. Skinneri should not be delayed any 
longer, and should yellow thrip on this and C. Bowringiana be troublesome, 
by getting down into the axils of the new growth, tobacco powder should be 
well dusted in, as otherwise they are very difficult to dislodge. 
The new growths of C. Trianze are rapidly advancing, and when the 
pseudobulbs are matured less water should be given and the plants placed 
in the most airy part of the house, near a ventilator if possible. The 
earliest plants of C. Dowiana aurea will soon be in flower, and this species 
wants careful watching, as decay is liable to take place after the flower spike 
is cut off. It is caused by moisture lodging at the base of the flower sheath, 
where the leaf joins the pseudobulb, a very critical place. The consequence 
is, if the decay be unchecked, that in a few days the leaf will be lost, as the 
new pseudobulb too quickly becomes rotten, unless the decayed portion is 
clean cut away. This decay must be prevented, for not only do the plants 
look unsightly with half a bulb, but they are also greatly weakened. All 
the autumn and winter-blooming Cattleyas are liable to this, but C. Dowiana 
aurea, C. labiata, and the hybrids, C. x Hardyana and C. x Massiana, are 
the most susceptible, and especially if the weather is dull and damp, To 
avoid it the flower sheath should be entirely pulled out, directly the spike 
is cut, so that the air has free access and no moisture can lodge there. It 
is also a good plan to dust the wound with a pinch of powdered charcoal. 
In the East Indian or Dendrobium House no change in the treatment 
is required at present, unless it is that fire heat may almost entirely be 
dispensed with, though it is best to have a little warmth in the pipes if the 
weather is unseasonably cold. If any alteration is contemplated with the 
heating apparatus it should be finished by the end of this month. Continue 
to watch closely the Dendrobiums, and those that have finished their new 
pseudobulbs must be taken into a cool but sunny department and water 
gradually withheld. I refer to such species as flower in spring and require 
a long rest; but those that flower immediately the growth is finished must 
not be removed until they have bloomed. D. formosum giganteum is one 
of the latter and will soon made a good show, D. Phalenopsis Schroederianum 
is another, and such kinds must be kept in heat or the flowers will come a 
poor quality. 
Bolleas, Pescatoreas, and Stenias, are curious and interesting Orchids, 
and a position should be found for them at the coolest end of the East 
Indian House. If the end be glass so much the better for the plants, for 
