NOVEMBER, 1906. ] THE ORCHID REVIEW. 331 
Cattleya superba is oneof those. This plant is somewhat difficult to grow 
and flower. It does not like root disturbance, and seems to be satisfied 
with scanty fare. 
Lelia majalis, Odontoglossum citrosmum, and a few others are noteworthy 
as requiring an especially dry rest, although evergreen, but it is quite easy 
to carry the drying too far even with them. Although the bulk of 
Cattleyas and Leelias have finished above ground, the roots remain more or 
less active during the winter, and plants which will go through another 
season without re-potting may have any re-surfacing which they will require 
Performed now. This will save time when the busy season comes round 
again, and the roots will also run freely in the fresh material, and get a good 
hold, ready for spring. 
Wholly deciduous pseudobulbous Orchids, like Mormodes, require hardly 
any water during the winter, while the tuberous-rooted, deciduous genus 
Habenaria requires no water at all when at rest. 
PHALNopsis.—Particular care must be exercised in watering these 
plants during the winter months, for having no pseudobulbs to rely on, 
they must never become thoroughly dry, but should be kept on the dry and 
safe side, and never be drenched during the dull season. Although the 
temperature required by these plants is a comparatively high one, avoid any 
sense of stifling through keeping the ventilators too close. 
The temperatures for the present month should be as nearly as possible 
as follows :— ae 
East InNpIAN HousEe.—Day, 70° to 76°; night, 65° to 68°. 
CAaTTLEYA Housr.-——Day, 65° to 68°; night, 60° to 64°. 
INTERMEDIATE HousE.—Day, 60° to 64°; night, 55° to 58°. 
Coot Housr.—Day, 55° to 58°; night, 50° to 54°. 
The lower night temperatures should be registered in the morning, and 
the lower day temperature during sunless, cold weather. 
VENTILATION.—Take advantage of all fine days and ventilate freely, 
avoiding draughts. Aim at having the air in all the houses in circulation ; 
though warm, it should not be heavy. But I think I have been over this 
§Tound before. 
LicHT.—In the London districts washing the outside glass enters 
largely into the calculations of the Orchid grower during the winter, but 
just how often it will want doing will depend upon how kindly or otherwise 
he is treated, It has been our experience to wash through twice with only 
Sufficient interval to make sure that the second visitation had deserted us ; 
but that was an exceptionally bad year. I feel that 1 want to growl, a 
shall restrain myself. Clean the woodwork and glass when going eas : 
re-arranging and washing the plants, and do your best to findas much lig 
*S possible for them during the resting season. 
