JuLy-AucusT, 1918.] THE ORCHID REVIEW. 155 
entirely to their liking. They delight in light, air, and abundance of water 
whilst making their growth, after which a decided season of rest with only 
sufficient water to prevent shrivelling should be given. These plants are 
good examples of plants losing their roots and vitality by improper watering, 
especially during the winter months. They are not so popular at the present 
day as their merits deserve, as there is sufficient variety to make them 
interesting, and where they have been used as parents, crossed with Cattleyas, 
they show promise in the future of making a distinct class of Orchids. The 
cool-growing members of this genus, such as L. pumila, praestans, Jongheana, 
and Dayana, are also developing new growths. During the hottest part of 
the year a light position should be given them in the Cool house, where they 
will thrive much better than in the Intermediate house. They may remain 
there until they commence to show their flowers, when they may be returned 
to the drier and warmer conditions of the Intermediate house for the winter 
months. These plants make suitable plants for those who indulge in the 
cultivation of a few Orchids in a small house of warm greenhouse 
temperature. . There is a lot of enthusiasm over the slightest success with 
this class of amateurs, who grow flowers for the pure love of them. 
LELIOCATTLEYAS AND ALLIES.—The general principles of culture laid 
down in previous Calendars, may be applied to the numerous varieties of 
this large and popular group. ee 
CarrLeyas.—C. Gaskelliana, C. labiata, and the late flowering varieties 
of C. Warscewiczii (gigas), which make their growths during the late spring 
and summer months and produce their flowers during the autumn, are in an 
advanced stage, and already their pseudobulbs and flower sheaths are 
formed. They must not be allowed to suffer for want of moisture at the 
roots, and should be placed in a position where they may receive the full 
benefit of light and air to consolidate their growths. As soon as these are 
mature, and the flowers commence to open, much less water at the oe 
will suffice. C. Mossiz and C. Mendelii, with their numerous varieties, 
both white and coloured, have passed out of bloom. After enjoying a short 
rest they will commence to push forth new roots, when any necessary 
repotting may be undertaken. These fine species enjoy the coolest position 
in the Cattleya house, and soon decline in vigour if subjected to a high 
temperature. There is enough variety in these two species of summer- 
flowering Orchids to make their culture most interesting, and they comprise 
the most useful members of this large gens: Having devoted much time 
and attention to the close study of the cultivation of this ines of plants, I 
would point out that the chief essentials to success are, firstly, a buoyant 
healthy atmosphere, secondly, a sweet clean fibrous rooting medium, oe 
thirdly, an intelligent application of water to the roots and : e 
atmosphere during their respective seasons of growth and rest. Finally, 
