170 THE ORCHID REVIEW. 
its free-growth, and is not only interesting on its own account, but also as a 
probable factor in the production of some still finer secondary hybrids. It 
is curious that both this and the now well-known Epiphronitis x Veitchil 
should have taken entirely the character of the pollen parent so far as the 
shape of the flower and the adnate column are concerned. 
ODONTOGLOSSUM X_ CRISPO-HARRYANUM. 
A flower of this most interesting and beautiful hybrid, which received a 
First-class Certificate at the Temple Show, has been sent by M. Ch. 
Vuylsteke, of Loochristi, Ghent, who raised it from O. crispum and O. 
Harryanum $. The sepals and petals are narrower and more acuminate than 
in the latter, and the dark markings are reduced by about one-half; in this 
respect recalling some forms of O. luteopurpureum. The lip closely 
resembles that of O. Harryanum, chiefly differing in having the dark basal 
part a little more broken up by yellow, and in the filaments of the crest 
being slightly reduced in size. M. Vuylsteke must be congratulated on his 
success with this genus, for his beautiful O. x loochristiense was described 
at page 41, and now we have a second great acquisition to record. 
CALENDAR OF OPERATIONS FOR JUNE. 
By H. A. BURBERRY, King’s Heath, Birmingham. 
THE temperatures for the East Indian and Intermediate house Orchids for 
this month should be maintained as advised for last, allowing, of course, 
for a rise of a few degrees of extra warmth corresponding ‘to the increased 
warmth outside. Now is the time of the year when the plants will grow if 
only given rational treatment. If the little matters of ventilation, shading, 
watering, damping, and keeping free from insect pests are attended to with 
a reasonable amount of common sense and regularity, then headway and 
good healthy growth will surely follow in its train. But if the plants are 
denied due attention in these respects during the following few months, 
then, as can only be expected, the best of the season will slip past without 
leaving its stamp of health and vigour behind. 
A gardener, who is justly proud of his small but wonderfully well- 
cultivated collection of Orchids, gave me the other day what he considered 
were the four chief factors in the successful culture of Orchids (warm 
and intermediate Orchids). They are these: Sun, air, warmth, and 
moisture. His Orchids are never shaded from the sun’s rays. Air is 
supplied very freely on all favourable opportunities. By ‘‘ warmth” he 
_ referred principally to sun heat, not fire heat, and by “ moisture ” he means 
_ that the plants should be kept wet not only at the roots, but occasionally 
