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AUGUST, 1911.] THE ORCHID REVIEW. 237 
these plants in, is attributable to neglect in this matter. A good sweet 
rooting medium is the sure road to success with this class of plants. With 
proper care and attention there is no reason why anyone with a house 
where the proper temperatures can be maintained should not succeed with 
these lovely Orchids. Sophronitis and its hybrids, from a cultivator’s- 
standpoint, may be treated the same as Cattleyas, with this difference, that 
the Sophronitis are best grown in the Cool house and the hybrids 1 in the- 
Intermediate house. 
RopRIGUEzIAS (Burlingtonias).—The plants of this genus are amongst 
the most beautiful of small-flowered Orchids. They are easily grown, 
and have a free-flowering and compact habit. These dwarf epiphytes thrive 
best in small pans suspended from the roof in an Intermediate tempera- 
ture, such as the Cattleya house affords, where, owing to the amount of 
light and air, the plants make satisfactory progress. As a rooting medium 
the compost recommended for Cattleyas will answer their requirements. 
The drainage should be ample, as during the season of growth a free supply 
of water is necessary, but when the plants are resting, this must be greatly 
diminished, but not entirely withheld. 
MILTONIA VEXILLARIA.—Towards the end of the month plants of this. 
species and its varieties will commence to grow actively ; therefore those in 
need of fresh-rooting material should receive attention as they require it- 
They are best done when it is seen that they are about to push new roots 
from the base of the young growth. Large specimen plants that are 
showing signs of exhaustion should have the old material shaken from their 
roots, and all useless bulbs removed, leaving only two or three behind each 
lead. These are best potted up singly in small pots or pans, the strong” 
young vigorous plants being potted on to take the places of the specimens- 
that are broken up. The compost I recommend for them asa rooting 
medium is as follows: equal parts peat, osmunda and polypodium fibre, 
sphagnum moss, and clean sifted oak leaves, all thoroughly mixed together. 
The plants must not be potted too firmly, or be over-watered. Water may 
be poured amongst the pots or pans in which they are growing, and on: 
hot days they may be slightly sprayed overhead, as they delight in a 
moist, humid atmosphere. After potting, the plants should be placed in an 
intermediate temperature, and be shaded from strong sunshine. 
MiLtToniA BLEUANA.—This is a hybrid of M. vexillaria, and, from a 
cultural standpoint, may be treated the same, with this difference, that it is 
more irregular in its flowering season, often producing two batches of 
flowers in one season. Repotting may be done at any time during the- 
season when new roots are forming above ground from the young growths. 
These plants, to my mind, are best repotted every season; therefore over— 
potting must be avoided. 
