FEBRUARY, I914.] THE ORCHID. REVIEW. 43 
~ CALENDAR OF OPERATIONS FOR. FEBRUARY. 
By T. W. Briscor, Late Foreman of Messrs. Veitch’s 
Hybridising Department. 
HE temperatures and general conditions described in the last issue will 
still hold good, and towards the end of the present month most of the 
plants will begin to show signs of renewed activity. As much work as 
possible should be accomplished, and so somewhat relieve the pressure later 
on. The repotting of the winter-flowering Cypripediums may be completed, 
and as root action increases so can water be given with more frequency. 
ODONTOGLOSSUM CITROSMUM ought still to be kept on the dry side, until 
the flower spikes are seen emerging from the new growth. The back 
pseudobulbs may shrivel, but this need not cause any anxiety, as they soon 
regain their rigidity when water is again applied. 
MILTONIA VEXILLARIA, with its numerous varieties and hybrids, must 
be placed within a reasonable distance of the roof glass in the Intermediate 
house, and if the leaves become sticky and adhere to each other it will be 
necessary to release them with the handle of a budding knife. This is 
most essential, or the Fuses will be crippled, and thrip will find a safe 
lodging place. 
CATTLEYAS and La&LIOCATTLEYAS that are growing must be kept moist 
at the root, but for those in a dormant state drier conditions may prevail. 
DENDROBIUMS.—Although not so popular as they were some years ago, 
the deciduous or spring-flowering section is still highly prized in many 
establishments. With a little management the flowering season can be 
prolonged, and another batch may be gradually brought along in a little 
extra heat before placing them in the warmest house. It is advisable not 
to excite the plants to any great extent by excessive watering or a very 
moist atmosphere. Our object should be to keep the pseudobulbs plump, 
and wherever possible to prevent the new growth from starting. Directly 
the buds are noticed more generous treatment may be given. The bulk of 
the Dendrobiums are generally left to take their normal course, when a 
good display of finely-coloured flowers will be secured in March and April. 
SEEDLING DENDROBIUMS.-—-When the repotting of the seedling 
Cypripediums is completed, similar attention should be bestowed upon 
the Dendrobiums. The new growths will now be sufficiently advanced to 
form a batch of roots at their base, and when these are visible the repotting 
can be done. Seedlings should always be repotted, not re-surfaced or 
top-dressed, as is sometimes suggested. A separate receptacle must be 
given to each plant as early in its career as possible, and for Dendrobiums 
a small pan is most suitable. To this a wire handle may be attached 
whereby they can be suspended from the roof in the Warm house, as the 
