Avucust, 1917.} THE ORCHID REVIEW. 179 
this cannot be accomplished they may be arranged in batches and treated 
accordingly. 
DENDROBIUMs of the deciduous section must be examined towards the 
end of the month, and any that have completed their growth must be 
removed to cooler and drier quarters, but water must not be withheld, 
neither must they be placed in too low a temperature. . A temperature of 
about 60°, with plenty of light and air, will answer their requirements for a 
few weeks to come. It is folly to make fine growths on any plant and then 
rest it in a haphazard manner, for there is as much skill in resting a plant 
satisfactorily as there is in producing fine growth. Dendrobiums that are 
still growing freely must have liberal treatment, and every encouragement 
should be given to enable them to complete their growths as quickly as 
possible, no matter which section they belong to. The sooner, within 
reason, they complete their growths, the more time they have to 
consolidate them, which is so essential to their flowering satisfactorily. 
MILTONIA VEXILLARIA.—Plants of Miltonia vexillaria and its numerous 
hybrids now comprise a class of Orchids of much beauty and usefulness, 
and when grown in quantity go a long way towards keeping the house full 
of flowers for the greater part of the summer months. Those plants which 
flowered early in the season will now have commenced to grow actively, 
and those in need of fresh rooting material should receive attention as soon 
as the new growths attain a few inches in height, and are about to produce 
new roots. This month and early in September I consider the best time 
to repot the early summer flowering varieties. Whenever it is considered 
desirable to increase the stock of any scarce variety, the rhizome may be 
severed between the bulbs as soon as the flowers have faded, and the 
pseudobulbs will then quickly produce new growths, and when sufficiently 
strong may be potted up in small receptacles and treated like the other 
plants. The late-flowering varieties, such as Leopoldii, superba, and 
rubella, are best deferred until the spring before attempting any repotting, 
as if repotted as soon as they pass out of bloom they rarely re-establish 
themselves before the winter is upon us. 
MILToniAs, being surface rooters, are best grown in shallow receptacles, 
and will succeed in a compost made up of equal parts of peat, osmunda 
and Ar fibre, sphagnum moss, and clean, sifted, half-decayed oak leaves, all 
thoroughly mixed together. The plants should be potted moderately 
firmly, and water should be sparingly applied to them until the new roots 
have freely entered the new material. A moist position in the Inter- 
mediate house, where they can be shaded from the sun, will answer their 
requirements. Yellow thrip soon puts in an appearance on these plants if 
the situation is not to their liking. 
Cattveyas, Leliocattleyas, and their allies should still be potted and 
