86 THE ORCHID: REVIEW. (MaRCcH, 1913. 
coolest end of an Intermediate house will answer their requirements. At 
this season every precaution must be taken against the attacks of thrip and 
other insect pests, mild periodical fumigations with some reliable vapourising 
compound being the best remedy. 
DenpRosIUMs of the deciduous section will now make quite a gay 
picture in our houses, and the season can be prolonged for some consider- 
-able time by bringing some on gradually and keeping others back in cool 
quarters. Noattempt at forcing those varieties that are at all scarce should 
be attempted, as fine flowers are not made by subjecting the plants to 
‘unnecessary heat. D. Phalznopsis and its numerous varieties that are 
developing new growths, and that are in need of fresh rooting material, 
may have attention as soon as new roots are observed to be pushing from 
‘the base. The most important detail in the cultivation of this class of 
plants is to give them plenty of heat, moisture, and light whilst in full 
growth, with a dry rest after blooming. This and the allied species will 
succeed in a similar compost to the deciduous section. 
Cattleyas, Lzliocattleyas, Brassocattleyas, and others that have passed 
-out of flower and are commencing to make new roots, should have attention 
as regards repotting. It is necessary that the compost in which these 
various Orchids are grown should be kept in a sweet and healthy condition, 
as no Orchids resent sour material more than these. A suitable mixture is 
comprised of the following materials; equal portions of peat, polypodium, 
Ar. and osmunda fibres, and sphagnum moss, all thoroughly cleaned and 
used in a rough state. If any difficulty is found in getting good peat fibre 
it may be left out, potting the plants quite firmly ip-the other materials. 
VaNDAS.—Such plants as Vanda teres, V. Hookeriana, the hybrid 
V. Miss Joaquim, with Renanthera coccinea, and other species which 
succeed under the same conditions, should be placed in their growing 
-quarters, as no gain is likely to accrue from extending the resting 
season. These plants enjoy all the light possible, therefore the lightest 
‘possible position in the East Indian house or plant stove should be selected 
for them. 
PLEIONEs.—The late-flowering Pleiones, such as P. humilis and P. 
Hookeriana, should have attention as regards new rooting material, should 
it be necessary. A compost as previously advised for such varieties as P. 
maculata, P. lagenaria, and P. Wallichiana, which are now growing 
vigorously, will satisfy their requirements. 
PHALZNoPsIs that have bloomed and are commencing to make new 
roots may have any attention that is necessary. They are best grown in 
baskets suspended from the roof and not placed too near the glass, as they 
are liable to suffer from extremes of heat and cold. Healthy established 
plants that have roots clinging to the baskets in which they are growing 
iar serees hopes Via oooaet 
SRR en 
Sea es 
