TRANSLATOR’S PREFACE. 
In this edition I have incorporated a large mass of Dr. Hermann Miiller’s recent 
observations, of which he sent me full notes; and I have also added further details 
where it seemed necessary, taken from his own and other writings. Many new figures 
from Dr. Hermann Miiller’s other works have also been inserted here. 
The systematic part of the book, which is arranged on Endlicher’s system in the 
German edition, has been re-arranged according to Bentham and Hooker's Genera 
Plantarum. 
I may mention one case out of many in which I have had difficulty in choosing 
between equivalent words. I have throughout used fertilisation in preference to the 
ungainly word pollination, to imply application of pollen to the stigma without 
definite reference to the result of the act: that is to say, I have in ordinary cases 
translated Bestdéubung and Befruchtung by the same word. But I have taken pains to 
guard against ambiguity in all cases where this rendering might lead to it. 
_ Mr. T. H. Corry, of Caius College, Assistant-Curator of the University Herbarium, 
has read through the whole systematic part, giving me constant assistance. 
I have been at pains to compile a list of all works relating to the subject of this 
book ; and so far as lay in my power I have added an Index of genera to the list. 
Charles Darwin’s preface, full of suggestion, full of kindly appreciative feeling, is 
of peculiar interest as one of the very last of his writings. 
D’ARCY W, THOMPSON. 
Trinity CoLttear, April, 1883. 
