334 THE ORCHID REVIEW. [NovEMBER, 1915. 
little consequence it is a good plan to pot the strongest growths singly, 
using rather smaller pots, then, after the plants have made some progress, and 
are rooting freely, they may be transferred with but little root disturbance 
into pots several sizes larger. Ample drainage must be given to carry off 
the large supplies of water these plants always require, and the bulk of the 
compost for Disas should be sandy peat and sandy fibrous loam, to which 
may be added some chopped sphagnum moss, coarse sand, and broken 
crocks. 
Although in some places Disas will thrive in cold frames, and probably 
in the extreme south-west even without that protection, yet they appreciate 
the atmosphere of the Cool houses, especially when placed where they can 
obtain a good clear light, without direct sunshine. In watering keep the 
surface of the compost just moist until there are numerous roots, then the 
supply should be considerably increased, and a few heads of living sphagnum 
moss pricked in over the surface of the compost, so that an equable degree 
of moisture about the roots and growths may be maintained. Open wood- 
work staging is not to be recommended for these plants to stand on, there 
being insufficient moisture in close proximity to the plants. It is more 
suitable to use thick slates, which should never be allowed to become quite 
dry; even the last thing at night it is good practice to pour water over 
them. Should thrips or green fly attack the shoots, they must be 
immediately destroyed, or the plants will soon decline in vigour. For 
green fly use brush and sponge, and for thrips lay the plants down on their 
sides every few weeks and syringe them with a solution of warm soft soapy 
water, but on no account must these plants be subjected to the fumes of 
the vapouriser. Plants of D. Luna, D. Veitchii, and others that were 
repotted several months ago must now receive abundance of water at the 
roots, and if they were potted into small pots may now be safely 
transferred into larger receptacles. 
LycastEs.—L. Skinneri and its variety alba will now be fast finishing 
up their growth, and soon be sending up flowers. Lycastes, while growing, 
require abundance of water, but at this particular time they should be kept 
somewhat drier. On no account must they be allowed to shrivel for want 
of water, but the little check they receive from having less will cause them 
to send up their flowers more together, instead of by two or three at a time. 
These Lycastes are best potted in the spring when growth commences. 
Through the winter they are quite content with the Coo! house temperature, 
so long as it does not descend much below 50°. The foliage of these plants 
is too often met with far more yellow than green, and one cause is loss of 
roots through over-watering, and another a small species of red spider 
which feeds upon the undersides of the leaves. The remedy for this is to 
sponge them over periodically. Some of the varieties of L. lanipes—an 
