SEPTEMBER, 1917-]}. THE ORCHID REVIEW. 207 
CyPRIPEDIUMS are now pushing up their flower spikes, and these should 
be neatly staked as soon as they attain sufficient length, as it is very 
difficult to get them into position again if allowed to fall over the sides of 
the plant, and get twisted. If properly staked the flowers can all be seen 
to the best advantage. Plants of the summer-flowering section, of which 
there are several very beautiful and desirable varieties, may be repotted 
when they have passed out of bloom, should they require it. The usual 
compost advised for these plants will answer their requirements. 
MILTonIAs.—Plants of Miltonia vexillaria and its hybrids that were not 
repotted last month should be done whenever they reach the desired 
condition. This family now produces its flowers through the greater part 
of the summer, commencing early in April, and’as late as August there is 
still a good show of the later-flowering varieties, so that its general useful- 
ness can be easily seen. 
CALANTHES.—These decorative winter-flowering plants are now in an 
advanced stage of growth, and to secure sound, well-ripened pseudobulbs, 
which produce clear, well-coloured flowers, the plants should be afforded 
plenty of room, so that each may receive its proper share of sunlight. The 
plants should be elevated well up to the roof glass, and only sufficient 
shade should now be given to prevent damage to the foliage and pseudo- 
bulbs. Plarts of the C. Regnieri section, which flower in the spring, are 
only half-way through their growing stage, and should be treated in the 
same way as the others were when in full growth. 
ODoNTOGLossuMs.— Where a large collection of these beautiful Orchids 
are grown there are always some of them in bloom. Those that flowered 
early in the year are now 'making their growths, and the roots from these 
new growths will soon be pushing in all directions, and no time should be 
lost in affording new rooting material to those that require it. This 
-applies particularly to the O. crispum and O. Pescatorei types and their 
innumerable hybrids, also to the Odontiodas, which may be treated in 
precisely the same manner as Odontoglossums. Although individual 
plants may be repotted at any season there is a time when each individual 
suffers less than at any other, and September is undoubtedly the best time 
for the overhauling of these plants. The general conditions of the 
atmosphere is generally conducive to the plants quickly establishing them- 
selves. Plants that are in a dormant condition should not be disturbed 
until their new growths are several inches high. A suitable compost for 
these plants is one consisting of osmunda fibre, Ar fibre, and sphagnum 
moss, in equal proportions, and cut up according to the size of the plants 
to be potted. The pots and everything used should be thoroughly clean, 
the compost made moderately firm, and water applied very sparingly until 
the plants become re-established. The atmosphere must be kept 
