June, 1915.) THE ORCHID REVIEW. “70 
D. ELwest was raised in the collection of H. J. Elwes, Esq., 
Colesborne, Glos., it is believed from D. kewensis xX Veitchii, and was 
described at p. 219 of our eleventh volume. It is most like D. kewensis, 
but shows a considerable improvement on that parent. 
D. Bracxn (Luna X grandiflora) is the last of the series, y and its history 
will be found at p. 185. 
The two species shown in our illustration are D. grandiflora (fig. 17) 
and D. tripetaloides (fig. 21), the latter a pretty little plant having white 
flowers dotted with pink on the dorsal sepal, which we have not seen alive 
for several years. Many of the hybrids are also excessively rare if not 
quite lost, probably because they require somewhat’ special treatment. 
They may exist somewhere, in which case we should like to hear of them, 
for their beauty cannot be called in question. 
CALENDAR OF OPERATIONS FOR JUNE. 
By W. H. WHITE, for many years ware Grower to the 
late Sir’ Trevor Lawrence, Bart.7 K.C.V.O.: 
OW that so many Orchids are in flower, it is advisable to caution both 
owners and growers against the too frequent practice of allowing the 
spikes to remain on the plants too long a time, also of allowing small 
weakly plants to over-flower themselves. Those who have been interested 
in Orchid culture, even for a short time, will have noticed how prone some 
of the plants are to flower after they have got into such a debilitated state 
that they have neither strength nor stamina left to push either new growths 
or roots. Such plants should have their flower spikes removed immediately 
they appear. As regards freshly-imported specimens that are not properly 
established, particularly the smaller plants, also young seedlings that are 
about to flower for the first time, the grower will naturally be anxious to 
see the blooms, hoping that something especially good will appear. In 
such cases it is advisable to leave just one or two flowers to determine the 
variety, and when this is known tocut the spike immediately, and then give 
the plants a rest, afterwards gradually starting them into growth, the sole 
object being to get them thoroughly established, and the smaller pieces 
strong enough to bear, without distress, large spikes of flowers of good 
size and substance. In the case of large healthy imported specimens, it 
undoubtedly conduces to the future health of the plant if the spikes are not 
allowed to remain until shrivelling of the bulbs takes place. 
Well-grown plants of Odontoglossum crispum, with its numerous 
varieties, also O. Pescatorei and many hybrids, frequently send up large 
spikes of bloom, but on no account should spikes be allowed to remain on 
