THE ORCHID REVIEW. 333- 
Trichopilias, and other similar growing. kinds which have completed ‘their 
new pseudobulbs, I also recommend a very dry treatment from now hence- 
forth throughout the winter, though, of course, they must not be expected 
to withstand quite so much drought as the afore-mentioned deciduous 
kinds. What one has to watch in this matter of affording water during) 
winter is to see that each plant gets enough to keep the pseudobulbs in a 
perfectly plump and healthy condition, and if the department be not over- 
heated, a very little will be found sufficient. ome 
Coming now to those species having no such marked season of growth. 
and rest, but which are on the move more or less the whole time, I still 
advise comparative drought during the coming winter months. I refer to 
such species as the Cypripediums, Sobralias, Vandas, Zygopetalums, 
Saccolabiums, Pescatoreas, Phaius, Phalznopsis, Renantheras, Miltonias, 
Masdevallias, Dendrobiums Dearei and Brymerianum, Cymbidiums, 
Cochliodas, evergreen Calanthes, Angreecums, and Aérides, with any of the 
Oncidiums and Odontoglossums that are in active growth. The whole of 
these must have sufficient moisture at the roots to enable them to keep. 
moving steadily on, and to keep the foliage in a green, plump, and healthy. 
condition. Ifthe plants are healthy, which implies, of course, that they 
are well rooted, a very little water henceforth will suffice. My object. in 
mentioning these various kinds in detail is to indicate approximately the 
amount of water suitable for them. 
_ SYRINGING.—The practice of over-head syringing with tepid rain water, 
which is followed by such good results during the growing season, must 
now be abandoned in all departments, or it may do more harm than good. 
Scale-insects, however, in their various forms, will increase faster in 
consequence, and the plants: should consequently be looked over and 
cleansed when necessary with some approved insecticide. 
Spot.—Black spots on the foliage are contracted doubtless in a variety 
of ways, but the most prolific source must be attributed to a superabundance 
of moisture, partly created by faulty ventilation and partly by an 
insufficiency of warmth in the pipes just at the very time when most 
needed, which allows an excess of moisture to condense upon the foliage, 
soon producing in its turn minute growths of a fungoid nature. The above 
causes are also very conducive to rot taking place, but this last-named 
malady will sometimes appear in isolated cases when the houses are under 
the most approved management. A bruise, followed by water lodging 
about the same, frequently results in the rapid decay of the newly-formed 
Pseudobulb. When seen in time, the decayed portion should be cut clean 
away with a sharp knife, so that the air can have free access, which will 
mostly prevent further mischief. Growers of Cattleya Dowiana aurea and 
Cattleya labiata will probably be well rewarded if they keep a» sharp look. 
