SEPTEMBER, 1912.] THE ORCHID REVIEW. 259 
clature, the name will stand, dating from June of the present year. To 
propose a new name now for the hybrids between Cochlioda, Miltonia, and 
Odontoglossum would only be to stultify the Committee’s work, which is 
unthinkable. 
A particularly interesting article appears on another page with respect 
to a disease of Orchids. There has been a widely-spread belief among 
Orchidists that what is known as Orchid Spot is caused by a parasitic fungus, 
but experts have frequently failed to detect its presence, and have attributed 
the spot to some mechanical injury, especially to a chill caused by cold 
drip from the roof, which injures the leaf tissues, the decaying tissue then 
being attacked by certain fungi which live upon decaying vegetable matter, 
but which are incapable of injuring healthy leaves. It now appears that 
scepticism has been carried too far, and that a fungus has been introduced 
from Columbia, with Odontoglossum crispum, which lives upon the under 
surface of the leaves, and is capable, if neglected, of spreading and doing 
much mischief. We believe that some damaged Odontoglossum leaves 
were sent to us a few years ago, but that we failed to detect the presence of 
a fungus, perhaps through being too much affected with the prevailing 
scepticism, though we fancy that only the black spots remained, through 
the leaves either having been sponged or the mycelium otherwise rubbed off 
the surface. Now that the presence of the fungus in British collections has 
been definitely proved, it will be interesting to see whether it has become 
generally distributed. Fortunately, it appears possible to control it or 
stamp it out by sanitary treatment, but growers should be on their guard, 
or it may cause much damage before they are aware of its presence. 
THE GHENT QUINQUENNIAL SHOW.—We have received the schedule 
of prizes of the seventeenth Quinquennial International Horticultural 
Exhibition to be held at Ghent from April 26th to May 4th next, also a 
plan and elevation of the Exhibition buildings. Section 2 is devoted to 
Orchids, and contains 89 classes, including groups, for amateurs and 
nurserymen, new species and hybrids, genera and groups of allied genera, 
specimens remarkable for culture and floriferousness, and single specimens 
of all the leading kinds. An extensive series of medals and other prizes are 
offered. Gold Medals, value 100 and 50 francs, are offered for collections 
demonstrating the favourable influence of symbiotic fungi in the germin- 
ation of Orchids; and the same to Nurserymen for the greatest number of 
hybrids raised in their establishments, with their parents. The Jury 
will be, as usual, of international standing, excluding persons living in 
the City of Ghent. Full particulars may be obtained from the Secretary, 
Ghent. 
