252 THE ORCHID REVIEW. [AuGUST, 1922. 
moss to which has been added a little Ar fibre. An intermediate house 
temperature will suit their requirements, and water must be given them 
carefully for some time, also keep them shaded from direct sunshine. Keep 
the surroundings moist by syringing between the pots, and on fine hot days 
they will benefit by frequent light sprayings overhead. : 
OponTontas.—These hybrids are now more numerous, and some very 
beautiful varieties have recently been flowered. They are not so vigorous 
as their parents suggest, yet it is possible, by further intercrossing, that 
greater vigour will be produced, and that this race of hybrids will grow and 
flower equally as well as the Odontoglossums and Miltonias. A-slightly 
warmer temperature than that given to Miltonias seems to suit their require- 
ments best, and when repotting is needed a similar compost to that for 
Miltonias will suit them well. Grow them in small pans or pots, and give 
them treatment on the same lines as accorded to Miltonias generally. Thrip 
is the most troublesome pest for these plants, and the usual remedies must 
be applied by dipping them in some safe insecticide about once a fortnight. 
Odontoglossum crispum and its various hybrids, together with 
Odontiodas, have greatly benefited by. the cooler conditions which have 
prevailed lately. By the end of the month a good many will be in a con- 
dition to be repotted. Where any quantity are grown it is well to make an 
early start with this operation, and plants that have the new growth well 
advanced may have attention right away. A suitable compost is made up 
of osmunda and Ar fibre, sphagnum moss and oak leaves, in equal 
quantities. Plants repotted at this season will quickly re-establish their 
vigour. Confine them to suitable receptacles, and above all do not overpot 
them. Remove any pseudo-bulbs that are not required, and these, if 4 
good eye is present, may be persuaded to break by placing them on 
sphagnum moss in a propagating frame. Odontiodas, unless a house is set 
apart for them, should be grown at the warmest end of the Odontoglossum 
house, where they will greatly benefit by the extra warmth during the 
autumn and winter months. 
CALANTHES.—These winter-flowering plants are now fast developing 
growth and rooting freely. They must be encouraged by liberal watering 
and plenty of heat. During warm days give them occasional sprayings 
overhead, and they will benefit by a little weak manure water applied once 
a week. Some growers prefer to top-dress at this time with fibrous loam 
intermixed with dried cow manure, and the practice is to be commended if 
large flowering bulbs are to be obtained. 
Disa grandiflora and the various hybrids have now practically finished 
their flowering season. They should be given a rest in a cool, shadea 
frame for about six weeks. Keep the plants and surroundings moist during. 
this time. With this treatment they will develop sturdy young growth 
