May, 1907.] THE ORCHID REVIEW. 133 
they lie inactive for several months. A humid position should be found for 
this section, and one where they are fairly well shaded. 
The pleasing hybrids in which Lelia cinnabarina has figured are not 
always-so-easy to manage as one’s first impressions may convey. They 
are very easy to raise, and consequently they are often met with. At this 
‘season many are in flower, some developing, and others already over. 
Those developing and carrying flowers will need a fair amount of water, 
‘but after the flowering season is over they are best suited if kept well on 
-the dry side till the new growths have more than half developed. Much 
‘water is essential during the actual making of the new bulbs, but at all 
‘other seasons allow them to become fairly dry before watering. 
There are many plants in this house that will require attention as 
regards potting during this month and next. It frequently happens that 
plants of C. Mendelii, C. Mossiz, and many hybrids, will emit collar roots 
just when the flower buds are developing, and if the plant is weakly it will 
be beneficial to remove the buds, as a better time can thus be given for 
potting. But if the plant only requires shifting on into a larger pot, no 
hharm will accrue if done very carefully. One, however, very frequently 
meets with cases where the roots are ready for potting, and the plant 
©equires it, yet it is not possible to carry it out, because the flower is 
wanted, and potting would necessitate the removal of all the old material 
and some of the back portions of the plant. In such cases let the potting 
be done when the plant starts into growth, as there is then a certain 
‘amount of renewed activity in the old roots, and although I like to pot as 
far as possible when new collar roots are being emitted, I have had good 
results from potting at the commencement of growth. 
Cattleyas, like all other plants, require rejuvenating from time to time, 
and this can be done by cutting off the front portion of a plant when the 
new roots are being emitted, after which leave the old plant alone till it has 
‘made a fresh lead. Another method is to pull the plant to pieces carefully, 
and cut away all the old back parts, leaving not more than three bulbs 
behind each lead. Whichever system is followed it must be done with 
judgment, and only a few should be done at one time. Where Cattleyas 
have not been treated thus in the past it will take some considerable time to 
get all of them into the right condition, but unless you are prepared to 
forego flowers for a season it will be better to do them a few at a time. A 
vigorous front taken off will often make a fine plant the first season, but 
when a plant is treated that has been on the down hill course for some years, 
one must not expect too much from the first season’s growth. Generally - 
the plant will make a somewhat short and stunted bulb, but so long as the 
pot gets well filled with roots—and I may say that when plants are being 
rejuvenated in this way they should be put in the smallest pots possible— 
