10 THE ORCHID REVIEW. [JANUARY, 1909. 
CALENDAR OF OPERATIONS FOR JANUARY. 
By W. J. Morcan, Rann Lea Gardens, Rainhill, Lancs. 
DENDROBIUM WARDIANUM.—Plants that have been properly rested will be 
pushing their buds, and in many cases flowering during this month. They 
should be staged in a light position, and given a little extra water till the 
flowers are properly developed, and then kept a little drier till they pass out 
of flower, when they can be removed to their growing quarters. Where a 
house cannot be set aside for them they will grow well in a plant stove or 
vinery. D.aureum, X Curtisii, X Doris, anda host of other hybrids will 
also be pushing their flower buds, and should be given similar treatment. 
Where several potting mixtures have been tried notes should be taken whilst 
the plants are in flower as to which gives the best harvest of flowers, as 
some mixtures give fine bulbs but few flowers, whereas, in most cases, 
quantity of flower is the chief aim, so that if notes are taken whilst the 
plants are in flowera satisfactory result can be obtained again next season. 
Here we are always trying fresh mixtures and treatments during growing 
seasons, and I have found in many cases that flowers are better guides than 
growths, but generally speaking with Dendrobes I find the best thing is to 
get them growing as soon as possible after flowering, and let them ripen as 
they grow, that is give them a long growing season, and not rush them or 
give very high temperatures at any time. Where the Dendrobes are housed 
at present we give a temperature of 55° to 60°, plenty of moisture in the 
atmosphere, and ventilate on every fine or mild day. Solong as it is done 
carefully, a good syringing is better than too much water with the watering 
can, and also keeps the plants clean and provides a good growing atmos- 
phere, but afterwards a little ventilation must be given some time during 
the day, ifonly for half an hour, or spot will soon show on the bulbs and 
young growths. 
AERIDES, ANGR&CUMS AND VANDAS are a beautiful class of Orchids, 
which have been rather neglected of late years, probably because the showy 
hybrid Cattleyas and Lelias have replaced them, and are more useful as 
decorative plants. In any case we do not see such fine specimens shown 
as was the case a few years ago. Many of the varieties are only of botanical 
interest, though some of the larger flowering species are very handsome when 
in flower. Practically the whole of them like a stove temperature, with 
perhaps the exception of Vanda ccerulea, which generally does better in a 
temperature of about 60° to 65°. Until we get brighter weather they should 
all be kept on the dry side. Do not dry them so as to shrivel the leaves ; 
just enough water should be given to keep the leaves plump, until they 
commence to root again, when an ample supply can be given. They also 
then enjoy a good syringing overhead on fine days. During the winter 
