THE ORCHID REVIEW. 87 
paths, &c., in the afternoons, when the blinds are removed and _ the 
ventilators closed. But do not wet the plants overhead after the morning 
for some little time to come. A temperature of 50° to 60° at night will 
still suffice, but it may rise a little during the day with sun heat, and if the 
weather is genial, a little air should be given. It can scarcely get too warm 
from the sun’s power alone this month, but if occasionally this should 
become too powerful let the blinds be run down as before suggested. Give 
water enough to maintain a healthy plumpness of leaves and pseudobulbs, 
but avoid over saturating the compost. 
If the structure has a partition, so as to make a separate department 
for the Odontoglossum crispum type, instead of growing them in frames 
during the summer, that department should of course be kept a little colder 
by shading more from the sun, but the same amount of watering and 
damping is required. Without such a partition such kinds should be placed 
together, so that they may be better shaded without doing the whole house, 
for it is yet too early in the season to put them straightway out in frames, 
unless such frames have a hot-water pipe running through them, which 
would give a slight warmth when required. 
DENDROBIUMS are very suitable kinds for the amateur to grow, and they 
are very beautiful. There may perhaps be a few which will not prosper, and 
if that should prove to be the case such may be discarded. I refer to such 
species as D. Phalznopsis, D. Johnsoniz (Macfarlanei), D. superbum, D. 
superbiens, D. bigibbum, D. atroviolaceum, and a few other of the Torres 
Straits species, which seem to require an exceptional amount of heat. There 
is no reason why even these should not be given a trial, for it may be that 
the house will suit them, although no surprise need be felt if it does not. I 
have sometimes seen very good plants in such houses. The majority of 
Dendrobes, however, will thrive very well without such uncertainty, and they 
will this month make a fine show of bloom. The chief points of culture to 
consider are as follows :—Keep them to comparatively small receptacles, 
and grow all that will admit of it in pans or baskets, for they are ustally 
more at home when hanging from the roof than when standing on the 
stages. Strong erect growing kinds must of necessity stand on the stages. 
Do not re-pot more then is absolutely necessary. The roots will remain a 
long time in a sound and healthy condition if not over watered. They 
enjoy a long, dry, cool rest, from Autumn, when the growth is completed, 
‘until the present time, when new growth starts and the blooms expand. 
They should still be kept on the dry side, giving sufficient water only to _ 
keep them from shrivelling, and to slightly assist the new growths, they will 
then proceed steadily but surely, and but few if any will be lost through 
damping off. By and by, with better weather, the new pseudobulbs will 
quickly form up, and will be the better for not being hurried now. 
