THE ORCHID REVIEW. 215 
flowering, and may be given plenty of air and sunshine. Dendrobium 
Wardianum, too, when the growth is completed, should instantly be taken 
to another house and given the same kind of treatment, or it will quickly 
start to grow again. Do not, however, withhold a good supply of water 
just yet. 
I am extremely sorry to learn that the much to be dreaded Cattleya fly 
is still giving trouble in various collections. Doubtless it is imported from 
time to time with the plants. Give me thrip, aphides, scale, snails, or 
anything, but spare me from that Isosoma Orchidearum, for in a house of 
choice Cattleyas it is the worst enemy possible. A correspondent calls it a 
beast, a name somewhat appropriate. Its existence may be detected when 
the new growth is from an inch to two inches high. This becomes 
abnormally thick at the base, and one inexperienced would think that a 
splendid large pseudobulb would result. The growth, however, makes 
little progress, and gradually tapers off in a more pointed manner than is 
usual with those not affected. The only method is to cut off the infected 
growth and destroy it. It is as well to be on the alert when buying plants. 
Should they be newly-imported ones look well into them, and search for 
crippled growth or imperfectly formed pseudobulbs. If the fly was the 
cause of the mischief there will be somewhere about a hole whence it 
escaped on coming to maturity. Exercise equal caution when buying 
established plants. 
CYPRIPEDIUM x CORNDEANII. 
Some additional facts come to hand respecting this plant, which is re- 
corded at page 187 as a supposed hybrid from Cypripedium Lawrenceanum 
crossed with Selenipedium x Sedeni, though only the influence of the 
former was apparent. _ It is one of the half-dozen plants from the collection 
of Ti W. Swinburne, Esq., Corndean Hall, Cheltenham, alluded to at page 
66 of our last volume, and its having now flowered in the manner described 
has naturally caused considerable disappointment. Mr. Swinburne states 
that the seedlings were not raised by himself; but purchased at Messrs. 
Protheroe & Morris’ Sale Rooms, and the original label, still in his possession 
is written on one side—‘ No 1, Lawenceanum X Sedeni,” and on the other 
‘Sown April, 90; seedlings, July, go.” As to whether the record is correct 
we can offer no opinion without further knowledge of the circumstances, and 
prefer to again call attention to Mr. Swan’s interesting note at page 171 of 
our last volume, with the appended remarks, and request our readers to send 
us any new facts bearing on the question. We would also ask our hybridists 
to make a few careful experiments with the genera Cypripedium and Seleni- 
pedium, and send us the results. 
