SEPTEMBER, £914. | THE ORCHID REVIEW. 277 
exposed to the light, and the water supply can be gradually reduced, but 
not entirely withheld, for Pleiones are like Disas, never really dormant, 
although growth is very slow through the winter months. When the 
pseudobulbs are depleted of the foliage growth will commence, and the 
short scapes of crocus-like flowers will emerge from the base of the bulbs. 
At this stage the roots ought to be kept moderately dry, and if the plants 
are removed to a house where the atmosphere is less humid, the blooms 
will remain in full beauty. for a much longer period. P. humilis will 
continue to grow for some weeks yet, and must be treated accordingly. It 
and one or two others flower in the spring. 
HABENARIAS.—These charming Orchids are well worth growing, the 
most critical part of their culture being the resting season. They are 
deciduous, and a decided rest is necessary, but it is advisable to examine 
the pots occasionally to ascertain whether the tubers are shrivelling from 
lack of moisture, or a drip is causing the soil to get into a wet state. 
After the flowers are past, the stems gradually decay, water is given less 
frequently, and then practically discontinued till the spring, when the 
tubers awaken from their slumbers. 
Cuysis.—Although a small genus and one belonging to the past, a few 
representatives are still grown in some collections, and to secure the best 
results it is essential that the pseudobulbs should be properly ripened. To 
this end they should be placed in the warmest house if growth is at all 
backward, otherwise the Cattleya division will suit them until the foliage 
changes colour. When at rest they may be suspended in a light position 
in a cooler house, or among the Dendrobiums, and only afforded sufficient 
moisture to keep the bulbs in a plump state. 
L2LIA ANCEPS and varieties, and any Cypripediums that are pushing up 
their flower scapes, should be neatly staked to prevent them from twisting 
and injury. The former must receive plenty of light and ventilation on all 
favourable occasions. 
Oncipiums.—O. tigrinum, O. varicosum, and the fine variety Rogersii 
will soon be flowering, and here it is advisable to carefully stake the spikes 
before they are far advanced, while a piece of cotton wool placed around 
the base of each spike will retard the progress of slugs, which are usually 
very active as the nights become longer and dark. Vanda ceerulea will also 
fequire similar attention. : 
OpontocLossums.—The repotting of the Colombian section should be 
finished at the earliest possible date, and until they are re-established the 
Surroundings must be kept moist and the ventilators fairly close. The 
Pretty O. Rossii will be growing freely, and until the pseudobulbs are 
developed the plants must be afforded ample moisture at the base. After 
flowering a partial rest is allowed, but if kept without water for any great 
