PREFACE. 
The first and, up till now, the only work by which plants from 
any part of the "Celestial Empire could be identified was Bentham's 
ora Honghongensis published in 1861. This Flora dealt only with 
the small island of Hongkong on the S.E. coast of China and is now 
moreover out of date and diffieult to obtain, so that it has become 
more and more desirable, with ering interest in the Chinese flora 
and with the desire among the Chinese themselves for a scientific 
knowledge of their own country, e publish ocn delay some sort 
T po descriptive Flora a larger area. Such a work 
serve as a stimulus to local eal eileen and provide a 
fotitos for the collection of materials for a more complete Flora. 
uring our association in the control of the Botanical and Forestry 
Department at Hongkong we have fully realised this need and 
have had the matter kept fresh in our minds by constant enquiries 
for a work of this kind. We have therefore been induced to prepare 
the keys and other information set forth in the following pages and 
have deemed it wise to confine ourselves to Kwangtung and Hong- 
kong and to cast the work on a simple scale which would not take 
too long to carry out nor be too bulky for convenient use 
We desire to record our thanks to Sir Hen Blake, Governor 
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with the detailed Mimi ue ot the Colony and to the Chinese 
botanical pee and herbarium assistants for their labours for us 
in the fie office. astly we wish to express our appreciation 
of the oes of the Director of the Royal Botanic Gardens, 
Kew, in allowing the use of the Kew herbarium and library during 
the final stages of the work. 
THE AUTHORS. 
