16 THE ORCHID REVIEW. 
hybrids, and we wish to help you all we can. We hope that further 
importations will throw more light on the question.” - 
This definite record of the occurrence of P. insigne in Burma 1s 1n- 
teresting, and I think new; at all events it suggests the probability that the 
importations which contained the plants of P. x Sallieri came from Burma, 
also that the so-called insigne pulchellum, reported from Khasia, and which 
proved to be Sallieri (Orch. Rev., ili., p. 105; v., p. 52), may also have come 
from Burma. The letter also throws some light on the reported occurrence 
of P. x Leeanum as a wild plant, a point recently discussed (ante, vii., 
pp. 310, 322), inasmuch as its two parents, insigne and Spicerianum, are 
shown to have come home in the same box. I certainly hope that 
conclusive evidence on these points will in due time come to hand, for it 
is a matter of great interest from many points of view. 
I take this opportunity of thanking Messrs. Sander for the information 
in question. We can all understand the motives which prevent the 
discoverer of some showy new species from immediately publishing the 
precise locality in which he found it, but the necessity for secrecy is 
fortunately only temporary, and as the information is always interesting, 
and often important, it is the more welcome when it is forthcoming. 
There is much to be learnt yet respecting the geographical distribution of 
garden Orchids. 
R. A. R. 
CULTURE OF ODONTOGLOSSUM CRISPUM. 
A Goop deal has recently been written on the above subject, and the 
following note from the Gardeners’ Chronicle for December 23rd last, will 
probably be read with interest :—‘* My twenty years’ experience has taught 
me to grow Odontoglossum crispum to perfection. Air in abundance, 
shade in summer, plenty of moisture in the house, particularly in the 
summer months, in fact, you cannot keep the house too moist during hot 
weather ; loose potting, for the roots require air, as much so as bulbs and 
growths; no fire heat applied, or only sufficient to keep the temperature 
from falling below 40°, and 2° or 3° lower in severe weather. The above 
methods I have followed for years, and have had spikes bearing from. 
twenty to twenty-four flowers. I have frequently had O. crispum flower 
from the apex of the pseudo-bulbs, caused, I should suppose, through the 
extraordinary vigour of the plants, certainly not through weakness or 
checks. Our Odontoglosstim House is 50 feet, and in severe weather it is 
covered with mats, over the lath blinds. Ido not employ much artificial 
heat, which is the ruin of O. crispum.—H. GARNETT, gardener to 
R. G. FLETCHER, Esq., Mount Harry, Brighton.” 
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