ful rest is necessary, but it is not advisable to allow plants to dry to the 
shriveling point. They are suitable for suspending from the roof. 
RENANTHERA 
Culture same as for Vandas. 
SCHOMBURGKIA 
Culture same as for Cattleyas. 
VANDA 
Compost of brown osmunda fiber mixed with plenty of broken 
crock. They do not like to have their root action disturbed and so should 
only be repotted when compost is becoming sour, and at the time they are 
just beginning to make new growth. 
They do best suspended near the glass, as they like much light and 
air, and in the early autumn should gradually be given full sun to ripen 
the growths. From April to September daily syringings are most beneficial. 
ZYGOPETALUM 
Use a compost with one-quarter well-rotted horse manure and 
three-quarters fine osmunda dust. Repot only when necessary, and then 
after flowering and when the new roots are beginning to protrude from the 
base of the growth. Plenty of water is required during growth, and the 
bulbs should never be allowed to shrivel. The young leaves, like Calanthes, 
are enfolded and care must be taken that water does not lodge in the cup 
so formed. 
DISEASES AND INSECTS 
Wet-rot is brought on by an over-moist or stagnant atmosphere, 
and is usually detected by a semi-transparent appearance of the parts 
affected, which soon become dark brown. If noticed at the commencement, 
it can be readily checked by slitting the outer skin with a sharp knife and 
removing the plant to a more airy position for a few days. 
Dry-rot is caused by a fungus which attacks the rhizome of the 
plant. It is often produced by burying the rhizome, or base of the plant, 
in the compost. Cypripediums are susceptible to it. Large, healthy growths, 
when attacked, show a sickly pale color in the foliage, which on examination 
of the base, are found discolored or of light brown appearance. If the 
affected portion is quickly removed with a sharp knife, it will usually give 
no further trouble; otherwise, it will travel along the rhizome and destroy 
the plant. 
Spot. The appearance of small, dark brown spots on the leaves 
and pseudo-bulbs is usually an indication of cold and overwatering. The 
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