DECEMBER, 1912] THE ORCHID REVIEW. 357 
avhich were fully described in last month’s article. If possible, let 50° 
Fahr. be the minimum temperature registered at night, with a rise of from 
five to ten degrees during the day. General cleansing operations can be 
carried out in this house when required, but unless an immense stock of 
plants be possessed, this will be the matter of a few hours only. 
Remove any Cattleyas which are in sheath and any Orchids in bud to 
the warmest end of the house, where their blossoms will expand more 
freely. Cattleya Percivaliana and C. Triane will probably be showing 
flowers at the base of the sheath. Be careful not to over-water them, or 
the buds will turn black and the sheath become blind. Lelia anceps will 
be making a good display now, and is invaluable in every collection, owing 
to its free-blooming character, coupled with the fact that it is easy to grow. 
I cannot, however, recommend any of its hybrids for growing in a small 
amateur’s collection, for there are many superior crosses which are more 
suitable, by reason of the increased size of their flowers. 
The flower spikes on many Dendrobiums will now be visible, more 
especially on D. Wardianum, crassinode, and nobile. Leave the plants 
still at the coolest end of the house, and do not give much water until the 
formation of flower buds is distinctly visible, for, under the influence of 
increased heat and moisture, these will, during their earlier stages, be liable 
to turn to growths. 
Vanda ccerulea should be kept almost dry at the roots, otherwise the 
dreaded spot will make its appearance. Should any of this be present, the 
affected leaves must be cut away, close to the brown spotting, and some 
slaked lime rubbed in. 
CATTLEYA PEETERSII WESTONBIRT VAR. 
(See Frontisptece). 
Tue Frontispiece to the present volume consists of a fine specimen of the 
beautiful Cattleya Peetersii Westonbirt var., to which a First-class 
Certificate was given by the R.H.S. on November 5th last. The plant bore 
six flowers, having pure white sepals and petals, and a rich purple-crimson 
lip, margined with white, and with some bright yellow veining on the disc 
and sides of the throat. A plant was exhibited at a meeting of the R.H.S. 
on January 9th last, when the parentage was given as C, labiata G. G. 
Whitelegge x C. Hardyana alba; and the colour was recorded as white, 
with a deep rose lip, veined with yellow at the base The C. labiata 
parent is well known as one of the finest whites in existence, with a large 
bright purple blotch on the front ofthe lip. C. Hardyana alba has white 
sepals and petals and a richly-coloured lip, and thus the hybrid has pretty 
much the character that might have been expected. It is a gem of the first 
water. 
