THE ORCHID REVIEW. 45 
it would relate their experience. It would be interesting to know in what 
Way it most attacks the plants, what time the perfect insect emerges, if 
more than one brood a year occurs, and especially any measures which 
have been successful in stamping out this troublesome pest. A knowledge 
of its habits would be of material service in battling with it. 
CULTIVATION OF CYPRIPEDIUM BELLATULUM AND 
ITS ALLIES, 
I po not think that any hard and fast rule can be laid down as to the best 
way of growing Cypripedium bellatulum and kindred species, but as some- 
one has been kind enough to say that I “grow bellatulum and its allies 
teally well,” I will state as briefly as possible the course of treatment 
adopted by my gardener, Mr. T. J. Poyntz. First, as to potting material. 
a mixture of loam, nodules of limestone, and old mortar rubble is used, 
peat and sphagnum moss being dispensed with altogether, which compost 
seems to suit these plants admirably ; and as Cypripediums concolor, 
Godefroy, and niveum are all reported as having been found on limestone 
tocks, this treatment appears reasonable enough. With regard to watering, 
Mr. Poyntz has recourse to dipping—that is, he dips the baskets and pots 
in which the plants are growing, so that the water just comes up to the 
base of the leaves, and this is only done occasionally, when the material 
has become excessively dry. Water getting into the axils of the leaves is 
so destructive to this particular class of Cypripedium that he abstains 
entirely from watering overhead. I am aware that this method of supplying 
them with water is not according to nature, as they could not be so 
supplied in their native habitat, but there they are not covered with a glass 
roof, and probably the sun and air soon dries up the moisture deposited on 
the plants by rain showers. 
Godefroyz, and niveum all do best with me in 
concolor, 
a stove Seragiieaters: on that side of the house away from the direct rays of 
the sun ; and the way in which a plant of Cypripedium Godefroye has 
flowered regularly with me since 1888, the way a Cypripedium concolor has 
tecovered from almost death and become a sturdy plant, and the general 
appearance of my Cypripedium niveums, all bear testimony to the efficacy 
of this treatment. Cypripedium bellatulum does better with me ina 
cooler house, the plants I tried in the stove having by no means the 
vigorous appearance of those growing in an i 
Ractkats YOUNG, 
