THE ORCHID REVIEW. 281 
CALENDAR OF OPERATIONS FOR SEPTEMBER. 
By H. A. BURBERRY, Highbury, Moor Green, Birmingham. 
Iv the Cool Orchid house no warmth from the hot water pipes should be 
required this month. Ventilate freely both night and day, and keep the 
temperature as low as possible ; at the same time keep up plenty of moisture 
by damping down several times during the day. The cool night air is a 
great invigorator, and the plants enjoy it. If healthy, robust growth is 
desired, fresh air, and plenty of it, must not be denied. 
This is, so far as Orchid flowers are concerned, a very ‘dull season. To 
an enthusiastic grower, however, flowers alone are not the only pleasing 
feature. To my mind the sight of the plants growing so freely at this 
season fully compensates for the lack of bloom. If previous instructions 
have been followed, the latter happy state of affairs will now exist; for at 
no time of the year do Cool Orchids grow so freely as at this season. 
But although flowers are scarce, there are still a few to be had. For 
instance : the genus Oncidium is sure to be represented, no matter at what 
time of the year. One very pretty and useful species flowering now is O. 
obryzatum ; its long and many-branched spikes carrying an enormous 
quantity of pretty little flowers ofa golden yellow colour, spotted with light 
brown. Such spikes of bloom are very graceful, and produce a lovely effect. 
This species is of easy culture, growing well either in pots or in baskets. If 
Tepotting is desirable, let it be done when new growths and roots are 
pushing. It is best removed to the Intermediate house during winter. 
Another exquisite little species is now in bloom in the form of O. Gardneri. 
It is not one lending itself very readily to cultivation; hence its scarcity. 
I find generally that it grows best in the coolest house, except, perhaps, for 
a short time during winter, when it mostly happens that it is forming new 
growth, necessitating, of course, the warmth of the Intermediate House. 
It is essential that it should be grown in small pans or baskets, and sus- 
pended. O. pilop (O. Saintlegeri is another species now in 
bloom, which promises to become a very pretty addition when more fully 
established. In fact, it is very pretty already; the large yellow labellum 
showing up the prominent violet-coloured crest very effectively. It appears 
to be of easy culture, growing well in the coolest house, in either pans or 
baskets. - i 
In this department a good many spikes will now be making their 
appearance, which will bloom later on in the autumn and winter months. 
Amongst them may be noted such fine things as Oncidium crispum, O. 
Forbesii, O. ornithorhynchum, O. tigrinum, and O. varicosum. Also 
Odontoglossum Edwardi, and O. ramossissimum. All should be carefully 
Suarded against injury from the various troublesome pests. Tobacco 
