THE ORCHID REVIEW. 347 
ture; whether growing in shade or in the sun, on trees or rocks, on the 
ground or by the sides of streamlets; the nature of the soil, &c. Such 
information is always instructive, and when forthcoming is of material aid 
to Orchid growers who stay at home, and I see no reason why it should not 
be given in detail. Those who are acquainted with hilly or mountainous 
districts, even in England, will not have failed to observe the difference in 
temperature of districts not far apart. At some points the breeze seems 
always fresh, at others a certain calmness prevails, although the wind may be 
heard to roar in the distance. These differences are caused by peculiarities 
in the aspect or surroundings of the locality, and are accompanied by certain 
differences in the temperature. Here a herb or shrub grows luxuriantly, 
while there it looks starved and stunted, and no doubt the same thing occurs 
in the case of Orchids—perhaps in a more marked degree. Some collectors 
affirm that frost actually occurs where some of our Vandas, Cattleyas, 
Lelias, and Odontoglossums grow; but from practical experience I have 
found it is not only best to keep away the frost, but still safer to keep them 
10°, 20°, or 30° above freezing point according to the species. 
Lelia majalis does not with me endure nearly such a low degree as L. 
“ autumnalis, though both should be wintered in the Mexican house, the 
former being suspended near the glass in the warmest part, and kept pretty 
dry. Other Lelias like anceps and Gouldiana must not be kept too dry 
until after they have flowered. Cattleya citrina is also best suspended at 
the warmest part, or it is apt to spot; it requires but little water during 
winter. 
Ccelogyne cristata is best for a cool and long rest in a dry atmosphere, 
as no difficulty with the damping of the flower spikes will then occur 
Pleione lagenaria and P. maculata are now showing flower buds, which 
expand well in the cool house. Keep the compost slightly moist until the 
flowers begin to open, after which give none, or the flowers will rapidly go 
off. Calanthe vestita and C. x Veitchii should be kept just moist at the 
root, and given a light place in the warmest house until the flowers open. 
Thunias are now dying off, and water may be entirely withheld for intervals 
of a month. 
Many beautiful Cypripediums will be in bloom this month, including the 
many varieties of C. insigne, C. Spicerianum, and their numerous hybrids ; 
also Selenipedium longifolium, S. Schlimii, and the hybrids arising from 
them. Many of the above species and hybrids are often recommended for 
cool-house culture, but all, including C. insigne and S. Schlimii are really 
better for intermediate temperature. I have always been accustomed to 
place the last named in the cool house for the summer, but this year I have 
kept it in a shady corner in the Mexican house, with better results. : 
The value of a good batch of Dendrobium Phalznopsis, and its allies, will 
this month be appreciated; they must be kept in a warm temperature, or 
