June, 1914.] THE ORCHID REVIEW. 175 
treatment varied. One may give a little more sunshine or shade, or 
provide more air or moisture; plants suspended can be arranged on the 
stage and vice versa; in fact many ideas in this direction will occur to the 
observant cultivator, and in this way a suitable position will often be found. 
Slight variations in the conditions have sometimes a great influence on the 
health of a plant. 
TurIp.—In some districts thrip is most troublesome, especially where 
the houses are in close proximity to herbaceous borders and shrubs, so it 
is essential for the grower to be on the look-out for these pests, and 
exterminate them by the usual method. 
RENANTHERA IMSCHOOTIANA. ees | 
ISITORS to the big summer shows, and more especially that held at 
Chelsea, will doubtless be much impressed by the fine display made 
by this handsome Orchid, its long branching spikes of bright scarlet and 
orange, butterfly-like blooms creating a very pleasing effect. It is of easy 
culture, and in fact success may be achieved in any greenhouse wherein 
the lowest winter temperature is 50° Fahr., with an average of 55° to 65° 
Fahr. for spring and autumn, but during the semmer months the plant 
will revel in all the heat obtainable. It is usually imported annually in 
quantity, but for amateurs I would advocate the purchase of healthy 
established plants, which can be obtained at modest outlay, and give a 
more satisfactory return. 
Throughout the period of growth a moist atmosphere must be 
continually maintained by frequent damping, whilst, unless in bloom, the 
plants will derive great benefit from a light spray overhead about g a.in. 
and again about 2 p.m. After the plants have finished flowering, water 
should be slightly withheld, but never to such an extent as to render the 
compost dust dry. 
Renanthera Imschootiana delights in a light and airy position, therefore 
throughout the year all possible care must be given to keep the atmosphere 
fresh and buoyant, and shading should only be employed during the 
summer months when the sun has great scorching power. Sponging the 
leaves should be done at regular intervals, and if mealy bug shows itself 
Some insecticide should be employed, as if once firmly established, in the 
axils of the leaves, it is afterwards difficult to eradicate. 
Repotting is usually needed every alternate year, using a compost of 
clean living sphagnum and osmunda fibre. Prior to setting the plant 
firmly in the new soil, cut away any dead roots and leaves, and keep freshly 
disturbed plants somewhat drier and more shaded for a few weeks after 
Tepotting. C. ALWYN HARRISON. 
f 
Ney 
