JuLy, 1914.] THE ORCHID REVIEW. 213 
from the roof at the warmest end of the Cool division, and a few partly 
decayed oak leaves can be added to the usual mixture with advantage. 
This Oncidium is very floriferous, and small weak plants must never be 
permitted to flower or it will take them a long time to recuperate. 
ONCIDIUM TIGRINUM enjoys much the same treatment as Odontoglossum 
crispum, although it responds readily to the conditions prevailing in the 
Intermediate house. Any repotting can be done this month, or when the 
new shoots are about two inches long. Frequent disturbance at the base is 
not desirable, and water must always be afforded in moderation. While 
the plants are at rest only sufficient need be given to keep the bulbs plump. 
CATTLEYA WARNERI will soon show signs of flowering, and after the 
blooms are removed new roots will appear at the base of the current 
pseudobulb, when any that need it can be repotted. Any Orchids that are 
disturbed at this season must be well protected from the direct rays of the 
sun, and watered with discretion. When re-established more light and air 
can be allowed, and, if the water supply be gradually reduced, a second 
growth seldom occurs. 
Tuunias.—A few of these will be in flower, and as they pass this stage 
every encouragement should be given them to consolidate and ripen their 
stems before water is entirely withheld. 
Coo. HousE.—If the weather is seasonable it will be impossible to keep 
the temperature of this structure down to normal when the outside 
thermometer registers 70° or 80° Fahr., and a bright sun is shining on the 
roof. Under such circumstances the beginner is apt to throw open all the 
ventilators and doors to their fullest extent, but all practical Orchidists 
know that this is detrimental to cool Orchids. The usual method to 
adopt is to only admit air sparingly during the day, and then chiefly 
through the bottom ventilators. At night the top ones may be fully 
opened, and remain so until the morning. The blinds must be lowered just 
before the sun begins to shine on the glass, and another thickness of shading 
can be employed for a few hours about mid-day. When the atmosphere 
is dry a thorough damping of the floors and stages will be necessary, and a 
light spray overhead may be given, but this ought not to be overdone, or 
loss of foliage and a few young growths will be the result. 
RENANTHERA PULCHELLA, Rolfe. — An interesting species, which 
appeared asa single plant in an importation of Renanthera Imschootiana 
with MM. A. A. Peeters & Fils., Laeken, Brussels, and flowered a year ago. 
It much recalls a small edition of R. Imschootiana in habit, but the 
numerous flowers are much smaller, having an expanse of little over an inch. 
The colour is buff yellow, with the apex of the petals and the lobes of the lip 
crimson. It received an Award of Merit at the Holland House Show to-day. 
