May, 1922.] THE ORCHID REVIEW. 149 
crocks to keep the compost porous. Pot firmly and give them a shady 
position in the house, water carefully until re-established, when more 
frequent supplies may be given. Cattleyas, like most other plants, require 
rejuvenating from time to time by giving them a sweet healthy compost to 
grow in; by affording them this attention at the right time the plant’s life 
is prolonged and the best results obtained. C. gigas, C. Dowiana and 
C. Hardyana are others commencing to grow—some have the growth well 
forward, give them a position well up to the glass, where they may get a 
fair amount of sunlight and ventilation. Water should be given sparingly 
until growth is well advanced, increasing the supply as the sheaths and 
young leaves are formed. These are better left over for potting purposes 
until fresh roots are formed from the new growths. Light is most beneficial 
to their welfare, especially towards the autumn, when they are maturing 
their pseudobulbs. 
Plants of Selenipedium, such as S. grande, S. Sedeni, S. caudatum and 
5. Schrédere, if not already potted, may receive attention. They like a 
good open compost consisting of fibrous loam, Ar. fibre, and sphagnum 
moss, with crushed crocks and sand intermixed. Give them ample drainage, 
for when well rooted they like copious supplies of water, especially when in 
full growth. Give them a shady position in the warm house, and keep 
their surroundings moist. 
ODONTOGLOssUM CITROSMUM.—Plants of this delightful Orchid not 
showing spikes may safely be repotted. They resent too much root 
disturbance, and should only be done if absolutely necessary. Pot them in 
shallow pans and grow them suspended in the Cattleya house, give water 
sparingly until the pseudobulbs are forming, when larger supplies may be 
given. When growth is completed, give sufficient only to maintain rigidity. 
Lycastrs.—Plants of L.*Skinneri and its varieties, of which there are 
many beautiful forms, are commencing to grow again. When the growths 
ate two or three inches high is a most suitable time to repot them. A good 
°pen compost is required, similar to that for Anguloas. Give good drainage 
and pot moderately firm, surfacing with sphagnum moss. L. aromatica, 
L. cruenta and L, Deppei are showing flower spikes and should not be 
disturbed until after flowering. For some time after potting give water 
carefully, increasing the supply as the growths develop. Give them a 
Position in the intermediate house where they will get a fair amount of 
ventilation during growth. 
SOBRALIAS.—These reed-like Orchids are developing flowers at the present 
Period, and will continue to give a succession of bloom for some time. 
After flowering, they may be top dressed or repotted as the case may be. 
Being strong rooting plants, a fairly good compost is necessary, consisting 
of fibrous loam, polypodium fibre, and sphagnum moss intermixed with 
