150 - THE ORCHID REVIEW. (JUNE, 1916. 
their respective houses. At the same time, although this treatment may be 
the means of prolonging the life of the flowers, care must be taken that they 
are not allowed to remain upon the plants to their detriment. 
CATTLEYAS AND ALLIES.—At the present season C. Mendelii, C. Mossiz, 
and their innumerable hybrids will make a great show, which will be 
continued by others right through the season. There are few more lovely 
things than a house full of well-flowered Cattleyas. C. Warscewiczii 
(gigas), C. Gaskelliana, and others which produce their flowers in the 
summer and autumn months are now making strong growths, and some are 
showing their flower sheaths, and need abundance of light and heat, with 
water when they become dry. These plants, owing to their short season 
of growth, must receive generous treatment after growth commences. ‘s: 
C. Dowiana, and its variety aurea, having now started into growth, 
should also be placed in the warmest position in the house and receive 
generous treatment. C. Lueddemanniana (speciosissima) is another species 
that thrives under these conditions of the warm Cattleya house whilst 
making its growths. These two species are both feeble rooters, and need 
more care in the application of water to the roots than those which produce 
more vigorous roots. A careful observer will soon notice those which are 
more active, and these, when repotted, may be given slightly more room to 
grow in than those of a feeble nature. C. Warneri and its hybrids grow 
under similar conditions to the preceding, and the earliest plants will now 
be nearing the flowering stage. The whole of this section may be repotted 
soon after the flowering period, when new roots are seen to be pushing from 
the base of the pseudobulbs. 
THUuNIAS will now be pushing up their flower scapes, and may be given 
alternate waterings with weak liquid manure. As the flowers of the 
different species commence to open, it is advisable to remove them to cooler 
quarters, where the plants will remain much longer in bloom than if 
allowed to remain in the Warm house. 
CocHLIODA NG@TZLIANA and the other interesting species of this genus 
are best grown suspended from the roof of the Cool house. They require 
the same treatment as Odontoglossum and other occupants of this division. 
There are few plants that have had such an effect on our collections as C: 
Noetzliana, and it is solely to its influence that our Cool houses are now 
made so dazzlingly bright. Shades of red and scarlet were sadly needed 
until this brilliant species was taken in hand by hybridists, and now the 
effects are seen on every hand. What a boon it would be if some species 
could be found which would have the same effect upon the warmer divisions 
of our collections ! é 
CALANTHES.—The deciduous Calanthes are now becoming strongly 
rooted, and may be watered more freely, but still carefully, as spot in the 
