THE ORCHID REVIEW. 283 
are not the least of these, as well as several other hybrids claiming either 
C. Warscewiczii or C. Dowiana aurea for parents. C. Warscewiczii some- 
times take the rot above mentioned, though but rarely, but it is well in the 
case of choice hybrids from it to remember the fact. Then, again, there is 
Cattleya Rex, some varieties of which are very showy. Like the preceding, 
it requires nothing more than the ordinary Cattleya house conditions to 
grow it well. Then there is C. Eldorado and its charming varieties, and 
the very beautiful C. superba, always welcomed at this season. They 
should all have the warmest portion of the last-named department, where 
they generally do well, if given plenty of water when growing, but should 
they fail they must be taken to the East Indian house. C. Loddigesii and 
C. Harrisoniana are also invaluable. These two species, I find, prefer the 
cooler Cattleya house treatment, and should they fail in a general house of 
Cattleyas I would advise a cooler position. Then there are other long- 
bulbed kinds, like C. Leopoldi, C. granulosa, and C. bicolor, which all help 
to make a show at this quiet season. } 
The flower spikes of the various autumn blooming Oncidiums, such as 
O. crispum, O. Forbesii, and O. varicosum, are now rapidly pushing. If 
any of these have been growing in the coolest house, and should by any 
reason be late in growth, they will now be better if assisted forward by 
placing them in the Intermediate house. The early part of November is 
plenty late enough for these to open, and any not likely to bloom by then 
should receive this assistance. To keep the young spikes perfectly free 
from thrip and aphis is of the utmost importance. 
THE AMATEUR’s House.—If the frame has been employed for the 
Odontoglossums during the summer, they will still enjoy such treatment 
until the first week or two in October, when it will be safer to remove them 
to the house containing the general collection, giving them the coolest end. 
Still give plenty of air and shade as much as required, but be pretty careful 
now as regarding water, for these frames generally lie damper than a house, 
and less watering is required. Collect all those which have completed their 
new pseudobulbs together so that they may be kept somewhat drier. All 
others which are still growing should have the treatment before re- 
commended, to induce quick growth as far as possible. Of course, less 
frequent overhead syringing will now be needed. Once a day will 
probably be sufficient, the best time being from 8 to g o’clock in the 
morning. Fire heat will probably not often be required during the 
day, but should be now had every night, little or much according to the 
weather, and this will prevent the temperature from getting too cold 
and stagnant. A high temperature is quite unnecessary, and indeed 
injurious; from 55° to 60° will answer well during the night, going up by 
day according to the outside conditions. 
