244 THE ORCHID REVIEW. [AUGUST, 1923+ 
from the base of the partly developed pseudo-bulbs. These plants have a 
rambling nature, and are difficult to keep in a limited space. When 
repotting, it will be found necessary to remove some of the old back 
pseudo-bulbs. Long teak wood baskets form the most suitable receptacles, 
and coarse osmunda-fibre and some sphagnum-moss as a rooting medium. 
PLEIONES.—The various members of this genus will now be completing 
their season’s growth, and should be afforded more light and air, and given 
sufficient water at the roots to keep the compost moist, and the bulbs 
plump, until the foliage becomes ripe and falls off. When this occurs, and 
until the flower buds appear, water will be needed in very limited quantities, 
after which the supply should be increased until the flower buds are fully 
developed. 
CALANTHE.—The deciduous Calanthes are in full growth and will now 
have filled their pots with roots. From now onwards until the leaves begin 
to decay they should be afforded copious supplies of water, with an 
occasional application of weak liquid cow manure and soot. 
MILTONIA VEXILLARIA, M. BLEUANA, AND THEIR Hysrips, that produce 
flowers early in the season, will have commenced to grow afresh, and some 
of them may need repotting, but before this is done it is important that the 
plants should beclosely examined for the presence of small yellow thrips. 
These insects secrete themselves low down in the axils of the leaves, and if 
they are not destroyed at once the plants will suffer serious injury, and the 
new leaves will become permanently disfigured. When yellow thrips are 
found to be present flower of sulphur dusted into the axils of the leaves by 
means of a camel's hair brush, when the foliage is quite dry, will have the 
effect of driving the pest nearer to the point of the shoots. The leaves of 
the plant and young growths should then be immersed in a solution of 
quassia extract and tepid rain water. After dipping the plants the foliage 
should be rinsed with clean water. These Miltonias require rather a 
shallow compost as their numerous fibrous roots prefer to ramble just under 
the surface. The receptable should be well drained, as during the growing 
season they need a copious supply of water at the roots, but it is important 
that it should pass freely through the compost. In repotting keep the base 
of the young growths about on a level with the rim of the pot, press the 
materials with moderate firmness around and between the roots. Until the 
new shoots begin to root freely, water should be afforded very sparingly, 
merely sprinkling the surface just sufficiently to keep the sphagnum-moss 
green. Stage the plants well up to the glass in a light airy position, in an 
intermediate temperature. They will be benefited by a light spraying 
overhead at least twice daily during bright weather. Attention should be: 
occasionally given to all blinds used for shading, for if laths become broken 
or the canvas torn some damage to the plants may result. 
