INTRODUCTION 
This booklet is in the same style as the first two of the 
series, but it is entirely concerned with orchids. It includes 
some of the attractive hybrids which have been raised in 
the Botanic Gardens, Singapore, in recent years. 
Those belonging to the genera Arachnis, Aranda and the 
round leaved Vandas, of -which the stems go on growing 
indefinitely, are easy to grow and propagate. Arachnis and 
Aranda like a very well-drained bed in the full sun, with 
liberal amounts of compost and manure. The round leaved 
Vandas generally like less drainage. The plants are kept 
upright by tying them to stakes, to which eventually they 
attach themselves by means of stem roots. Those described 
here flower almost continuously and will supply cut flowers 
for decoration all the year round. Propagation is by stem 
cuttings which have one or more aerial roots, or sometimes 
by off-shoots from the main stem. 
Dendrobiums and other epiphytic types of orchids need 
more care and are not quite so easily propagated. They 
must be grown in pots or baskets in a well-drained medium 
consisting mostly of broken brick, in which the roots may 
have a free run and access to air. Propagation is by division, 
vigorous young bulbs with roots being detached from the 
parent plant and potted up. Spathoglottis, although it is a 
ground orchid, must be propagated by division in much the 
same way as Dendrobium. 
i9£° 
M. R. HENDERSON, 
Director, Botanic Gardens, 
Singapore. 
