142 THE ORCHID REVIEW [May, 1915. 
-quite firmly around each plant. Good and efficient drainage is essential. 
For the present, afford sufficient water to keep the compost just moist. 
LycasTEs.—Lycastes are now flowering, and whilst the plants are in 
‘bloom it is advisable to wash the undersides of the leaves occasionally to 
destroy red-spider, which frequently attacks them. Very careful watering 
is necessary whilst these plants are in flower, as if too much be afforded the 
-old roots will decay, and the flowers soon become spotted and useless. 
Repotting may be done when the new growths are several inches high. 
Pot them in the same kind of compost as recommended ‘in a former 
-Calendar for the deciduous Calanthes, and the after treatment as regards 
-watering should be exactly the same. 
CATTLEYA HOUSE.—In this house plants of Cattleya Warscewiczii 
(gigas), C. Dowiana, C. D. aurea, and several of their hybrids are forming 
‘their new growths, and should be placed well up to the roof glass. 
Although the plants may be growing strong and freely, much care should 
‘be exercised in affording water, as any excess of water till the young 
-growths are well advanced is likely to cause the old roots to decay and the 
young growths to damp off. When the old compost has become close and 
“Stagnant, and saturated through over-watering, it generally takes a long 
time to get dry, and it is during this interval that much damage is done. 
Water may be more freely applied when the flower-sheaths are visible in 
‘the new growths, but the amount of moisture should be lessened gradually 
-after the flowers expand. Repotting should be deferred until after the 
completion of growth. 
Plants of C. Schroeder and several Cattleya, Lzliocattleya, and Brasso- 
-cattleya hybrids that have recently passed out of flower should be placed at 
the cooler end of the'house, and be*kept comparatively dry at the root, other- 
wise they may recommence to grow instead of having a rest. While the 
»plants are at rest they should not be allow to shrivel too much for want of 
water, but if the pseudobulbs have been properly matured, only a little 
‘water is needed to keep them fairly plump. Immediately new roots 
develop from the current season’s growth, and the old ones send out fresh 
‘rootlets, afford the plants larger pots, or fresh rooting material to those 
-that require it. 
Such species as C. Triane, C. Percivaliana, C. Gaskelliana, 
C. Lueddemanniana (speciosissima), the autumn-flowering C. labiata, and 
many of their hybrids are making new growths. Some of these plants are 
forming fresh roots from the old ones, others will quickly develop roots 
from the young growths. Such plants, provided they need more root 
room, may be repotted, and, if carefully attended to, the young roots will 
speedily become established in the fresh compost. Plants of C. Mossiz 
_and C. Mendelii that have failed to produce flower sheaths, and others that 
