on orchids. 595 



These Cattleyas require warm intermediate house treatment. 

 The potting compost should consist of good fibrous peat and a 

 little sphagnum. The pots should be drained sufficiently high 

 to leave the base of the leading bulbs raised slightly above 

 the edge of the pots. The material must be pressed firmly 

 about the base of the growths so that the plants may be made 

 secure in the pots. The best season for repotting is when the 



Fig. 376. — Cypripedium insigne Sanders. 



new roots make their appearance from the base of the newly- 

 made growths. If done at this stage, the plants soon get hold 

 of the new material, and so become established in their fresh 

 quarters. Water must be given with discretion, the supply being 

 governed by the particular situation, construction of the house, 

 and atmospheric surroundings both inside and out. These con- 

 ditions are best ascertained on the spot. Any difficulties in this 

 respect may be quickly overcome by an observant cultivator. 



2 q 2 



