THE ORCHID REVIEW. 173 
DENDROBIUM X ALCIPPE. 
Raised in Messrs. James Veitch and Sons’ nursery from D. lituiflorum var. 
Freemanii 2 and D. Wardianum f, and thence approaching D x micans, 
of which it may be considered a distinct variety. The flowers are inter- 
mediate in shape and size between those of the parents, but the colour of the 
seed parent preponderates. The sepals and petals are bright rose-purple, 
a little paler towards the base; the lip, the most striking ornament of the 
flower, is chiefly white, with a transversely oblong Indian-purple disk, and 
a narrow apical border of rose-purple. It received an Award of Merit from 
the Royal Horticultural Society on April loth last. 
CALENDAR OF OPERATIONS FOR JUNE. 
By H. A. Burserry, Highbury, Moor Green, Birmingham. 
SIMPLE attention may safely be said to be the only means whereby success- 
ful cultivation is attained. There are no other secrets. The temperature 
and other conditions under which the various species of Orchids are seen 
to best luxuriate should be noted, and secured as thoroughly and as 
punctually as circumstances will permit. The day temperature for the 
cool-house must now be kept as low as possible, at the same time keeping 
a very moist atmosphere, as advised last month. It is best now not to let 
the night temperature go much below 55°, although a few degrees below 
this need not be feared. For the intermediate houses, day with sun 75° 
to 80°; day without sun 70° to 75°; night 65° to 70°; morning 60° to 65°. 
Ventilate freely, shade as required, and damp down frequently, as advised 
last month. For the East Indian or Dendrobium houses, temperature : day 
with sun 80° to 95°; day without sun 75° to 80°; night 70° to 75°; morning 
65° to 70°. Keep up an abundance of moisture, and when giving top venti- 
lation open those ventilators on the leeward side principally. Roll up the 
blinds early in the afternoon while the sun has still some power, at the same 
time reduce the volume of air, and again thoroughly saturate the side walls, 
floors, and stages between the pots, and thus cause a warm, moist-growing 
temperature which will last well into the evening, when it is best to have 
a little warmth in the pipes, in order to prevent the temperature from 
falling too low during the night. 
Let it always be borne in mind that much depends upon the position in 
the house that a plant may occupy, and should a plant not grow kindly, do 
not hesitate to change its position, say from one end of the house to the 
other, or from a shady place to a sunny one, or vice versa, to the most airy 
or to the dampest place. In many cases itis evident that the plants 
experience a decided advantage in one position which is denied to them in 
the other, and it is therefore most important that these right places should 
