238 THE ORCHID REVIEW. [AuGusT, 1915. 
after this, provided the growths are well ripened, the current season's 
breaks will send out from their base a large number of roots that will 
readily enter, and appreciate the new compost, while if the operation of 
repotting is left to be done later on some of the roots will be injured. 
After repotting, only sufficient water will be needed to prevent undue 
shrivelling of the pseudobulbs, or the roots from perishing. A slight 
shrivelling in the bulbs may be allowed, as they will readily plump again 
when the plants become re-established. After this they will enter upon a 
long season of rest, so far as growth is concerned, during which time they 
should be kept, if possible, in a cool, dry, well-ventilated position in the 
Mexican or Intermediate house. During winter the dry, airy atmosphere of 
the Mexican house will suit them exactly. 
Cattleya Dowiana, C. D. aurea, C. Rex, and several of their hybrids are 
now growing freely, and some are developing their flower buds, and should 
be kept at the warm end of the house, so that the flowers may develop 
properly. The tips of the leaves should be within a few inches of the roof 
glass that receives the most sun, for a good clear light and plenty of fresh 
air are the most likely agents to induce the plants to flower. After growth 
is completed, and the flowers are cut, the plants should be treated as 
previously advised for C. Warscewiczii. 
MILTONIA VEXILLARIA.—Toward the end of this month the majority of 
the plants of this species, and several of its distinct hybrids, will have 
started well into growth, and some of them will need repotting ; but before 
this is done it is necessary that each plant should be closely examined for 
small thrips, which harbour low down in the growths, and the most 
effectual method of destroying these insects is to dip the plants into a safe 
kind of insecticide, and afterwards into clean tepid soft water. M. 
vexillaria requires a rather shallow compost, its numerous fibrous roots 
preferring to ramble just over or under the surface, therefore the pots OF 
pans should be very well drained. The compost may consist of osmunda 
fibre, which should be cut up rather small, sifting out the fine moss and 
dust. Some growers prefer the addition of sphagnum moss, leaf soil, &¢+ 
but the best grown plants I have seen exhibited were grown in osmunda 
only, In repotting, keep the base of the young growths about on a level 
with the rim of the pot, and pack the fibre in and around the roots with 
moderate firmness. At first, and until the new growths begin to root 
freely, water should be afforded sparingly, merely sprinklng the surface of 
the compost wherever it is dry, but as each plant becomes re-established 
the quantity of water should be increased. The Cool house will suit them 
for the present, but when the nights become colder the plants should be 
removed to the Intermediate house. 
EPIDENDRUM PRISMATOCARPUM.—Although the individual flowers ot 
