48 
fal we 
O. cordatum is a native of Central America, in the middle of Mexico and the 
northern parts of Guatemala. It is therefore a species which requires rather less 
air and slightly more warmth than the Columbian Odontoglossums. 
1g 1B 
(Concluded from p. 46.) 
water. Those which we find attacked should be washed with a dilute solution of sulphate 
of copper, which is a better remedy in such cases. Lastly, those which are badly diseased 
and on which the black spots have destroyed the surface should be cut off and burnt, to 
prevent the reproduction of the fungi. 
One should take care not to shake the leaves in cutting them, and to carry them 
wrapped in paper, so that the spores may not become detached, and so infect the other 
plants and propagate the disease. 
Lastly one should avoid leaving dead leaves or other decomposing vegetable refuge 
on or under the stages, as this constitutes a very dangerous source of infection. Thus we 
see that cleanliness is of the utmost importance. 
Comte DE Moran. 
(Fournal des Orchidées, vol. V.) 
27 AQIS 
BCS SE 
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