2 THE ORCHID REVIEW. [MaARCH, 1917+ 
into growth. Good fibrous yellow loam is the chief element of the compost 
for the plants. This applies to all plants which delight in a high tempera- 
ture. If the loam is not of the best quality, one half peat fibre may be 
aused with advantage. Personally, I do not advise a rich rooting compost 
in any case, but rely on generous feeding when the plants are well rooted. 
The compost should be placed in a warm place to get fairly dry and warm 
‘before being used, as much harm may accrue if the plants are placed in a 
cold compost. Whilst in growth these plants require plenty of heat and 
moisture, and must not be exposed to the direct rays of the sun. 
Puatus.—These plants succeed in a similar compost to the preceding, 
and under the same cultural conditions. Any plants that are in need of 
new rooting material should have attention just before the new growth 
commences to push roots. 
CympipiuMs.—There are now so many beautiful hybrids of this 
easily-grown genus, in addition to the species, that no collection is complete 
without some of them. All require similar treatment, and I refrain from 
giving a list of varieties. These plants also delight in a compost similar to 
that used for Calanthes, but succeed in a cool Intermediate temperature, 
‘with an abundance of fresh air. In fact, they succeed, if treated like warm 
greenhouse plants, but should be placed out of direct draughts. 
CypRIPEDIUMS of the winter-flowering section that may need more pot 
room, or new material, should have attention as they pass out of flower. 
The compost advised in last month’s issue will answer their requirements. 
The sooner the repotting is completed the better, for the plants quickly 
re-establish themselves, and make much stronger growths than when left to 
a later period. 
Vanpas.—Such plants as Vanda teres, V. Hookeriana, V. Miss Joaquim, 
with Renanthera coccinea, and others which succeed under the same 
conditions, should now be placed in their growing quarters. These plants 
enjoy all the light possible, therefore a light position in the East Indian 
house or plant stove should be selected for them. The surroundings should 
be kept moist at all times, and in bright weather they may be syringed 
overhead once or twice a day. 
CaTTLEyAs and the allied genera will now require more attention. 
Plants which have flowered and are commencing to make new roots, should 
be repotted if they require it. It is necessary that the compost should be 
kept in asweet and healthy condition at all times, therefore the material 
used should be thoroughly cleaned. There is a diversity in the rooting 
powers of individual plants, some making strong and robust roots, others 
small and feeble ones, and this should be an index, so to speak, to the size 
of the pots or pans to be used. The strong growers may be given larger 
pots, while the feeble roots should be more restricted. A suitable mixture, 
