AUGUST, 1913.] THE ORCHID REVIEW. 259' 
at the roots and slight syringings may be afforded them during hot weather. 
These plants should not be shaded excessively, as they are sun-loving 
plants, and only sufficient shade should be given them to prevent scorching. 
The house should be shut up early in the afternoon to raise the temperature 
considerably.. It may then be opened again during the night, as the night 
air is beneficial to these plants. To sum up the cultivation of these plants: 
in a few words, it is warm days and cool nights that they require. These 
Christmas-flowering Orchids are worth any amount of pains to flower them 
satisfactorily. 
CATTLEYAS, L&#LIOCATTLEYAS and allied subjects should be potted, as 
previously advised, whenever they are in need of it and are pushing new 
roots. I may appear to dwell upon this point toa great extent, but I am 
firmly of the opinion that many Cattleyas have been lost in the past by 
being overhauled at a season when they would have been better left alone. 
In such an extensive family as this it is obvious that they are not all in a fit 
condition to repot at any one season of the year. Plants of C. Bowringiana 
and its hybrids that are in full growth require plenty of water at the roots 
until the new pseudobulbs are formed. Care must be taken that the water 
does not settle in the bracts or sheaths which encircle the bottom of the 
young pseudobulbs, which is peculiar to this section of Cattleya, as such 
accumulation of water often means the loss of the bulb, with its flower 
spike, and in some cases may mean the loss of the plant. The cultivation 
of all Cattleyas is so simple, and the treatment of one species so much like 
the others—with the exception that they require this treatment at a different 
season—that I am at a loss to understand why they should be considered 
difficult subjects. 
PLEIONES.—The various Pleiones, as they complete their growth, should 
be exposed to more light, and be allowed more air than heretofore, but 
should receive sufficient water at the roots to keep the.compost moist and 
the bulbs plump until the foliage falls. After this occurs they will need 
water in very limited quantities until the flower buds appear, when the. supply 
should be increased until the flowers are fully developed. After the flowers 
have faded the plants require sufficient water to keep the pseudobulbs from 
shrivelling until they commence to grow in the spring. The cooler-growing 
species, P. Hookeriana and P.. humilis, must still have liberal supplies of 
water at the roots until their season’s growth is completed. 
MILTONIA VEXILLARIA AND ITS HYBRIDS.—Towards the end of the month 
those plants which flowered early in the season will have commenced to 
grow vigorously, and those in need of fresh rooting material should have 
attention. The repotting of this family is best extended over this month 
and the next, as it is possible to have some one or other of them in bloom 
right through the summer months, therefore it is quite obvious they are not 
