12 THE ORCHID: REVIEW. (JANUARY, 1923. 
determine any that need repotting. It will probably be found that very 
few subjects will need potting at this period, but where a plant is ata 
suitable stage for the operation it may be done at any time, providing 
careful watering is practised until new root action commences. 
CALANTHES.—From the middle of November to the end of the present 
month varieties of Calanthes of the Veitchii and vestita section will have 
been in bloom, together with the white variety, C. Harrisii, and as the 
spikes are removed they need a decided rest. It is necessary to thoroughly 
sharden and mature the pseudo-bulbs, so that when the growing season 
recommences the new growths will start with renewed vigour. Immediately 
the flower spikes are cut, water should be entirely withheld ftom the roots, 
and the plants may be placed ona dry shelf, close to the roof glass, ina 
house where the temperature does not fall below 55°, and where they may 
obtain full benefit of all the sunlight. Before placing the plants in their 
resting quarters it is advisable to thoroughly clean each pseudobulb from 
scale insects. The later flowering varieties of the C. Regneri section, that 
bloom in the spring, must still be afforded water occasionally until their 
flowering season is past. 
CypRIPEDIUMS.—Plants of the winter flowering section of Cypripediums 
will now be at their best, and, as they pass out of flower, should be given 
attention at the roots. Those that are in a very pot-bound condition should 
be repotted, and if the variety is a choice one, and it is desired to increase 
the stock, the plant may be divided into several pieces and potted up 
separately into small pots, while others should be potted on into receptacles 
two sizes larger, without much root disturbance at the base. Where good 
fibrous loam is procurable it should form the chief ingredient of the rooting 
medium; remove all the earthly portions and break up rather roughly, 
adding a small quantity of good fibrous peat or Osmunda fibre, with 
sufficient crushed crocks to keep the whole porous. The pots should be 
well drained, and for a time after root disturbance the compost should be 
kept rather on the dry side, but as soon as the young roots are seen to be 
pushing in the new material they should be kept continually moist. 
Denpropiums.—Many Dendrobiums, including both species and hybrids, 
are now showing their flower buds. If it is decided to have a succession of 
bloom, some of the more forward plants may be removed from their resting 
quarters into a slightly higher temperature, but care must be taken that the 
plants are not subjected to too much heat and moisture, or they will start 
rapidly into growth and produce inferior flowers. They should be afforded 
only sufficient water at the roots to keep their pseudo-bulbs plump, for if 
moisture is too liberally applied it will cause many of the buds to turn 
vellow and drop. The Cattleya house is a very suitable place to grow the 
plants until the flower buds expand. Keep a sharp look-out for slugs, which 
