178 THE ORCHID REVIEW. (JUNE, 1912. 
CALENDAR OF OPERATIONS FOR JUNE. 
By J. T. Barker, The West Hill, Hessle, E. Yorks. 
THE general conditions as regards temperatures, watering, ventilation, and 
atmospheric moisture laid down last month are also suitable for the present 
one. It should always be borne in mind that the hotter and drier the 
outside conditions the more humidity should be maintained within the 
houses. 
CyYPRIPEDIUM SEEDLINGS, as they get large enough to handle, should be 
pricked off into three to four-inch pots, ten plants in the smaller up to 
twenty in the larger size being sufficient. The sooner all seedlings have 
a separate existence the better, as they not only make more progress, but 
they can be treated individually, which is impossible whilst growing upon 
the surface of the compost in which another plant is growing. As a 
compost for these very small plants I find nothing more suitable than peat 
fibre and live sphagnum moss, in equal portions, the compost being pressed 
moderately firmly into well-drained pots, the surface clipped off nice and 
level, and the plants placed in the compost with a small pointed stick. 
After the seedlings have been pricked off they must be watered with great 
caution, and water must be applied through a very fine rose or a sprayer. 
They must be protected from the direct rays of the sun; otherwise they 
should be grown in a fairly light position, and where there is no danger of 
their becoming drawn. 
Coot DEnpRoBiIuMS.—Besides the different sections of these useful 
plants which we have previously mentioned there is yet another, namely, 
those which succeed in a Cool house. Such species as D. Kingianum and. 
var. album, D. speciosum and var. Hillii, D. teretifolium, D. glomeratum, 
D. japonicum, D. Victoria-Regina, and several others thrive under the 
conditions which prevail in this house. Any of these plants that are now 
starting to grow may have fresh rooting material afforded them if they re- 
quire it. The compost recommended for Dendrobiums in previous numbers 
will answer their requirements. They may be grown in shallow pans and 
suspended in a light position. D. teretifolium is best accommodated on a 
teak wood raft, with a little of the compost packed between the bars and 
under the base of the plant, the raft being suspended in such a manner that 
the foliage hangs down naturally. D. Victoria-Regina does better in a 
more shady position, and may be grown in shallow teak wood baskets, in a 
compost in which living sphagnum moss preponderates. These cool 
Dendrobiums require, when growing freely, a liberal supply of water at the 
roots, but must be kept on the dry side after their growths are completed. 
Many of the stronger growers may be kept quite dry; in fact if they are not 
rested sufficiently they produce few flowers. 
