x PREFACE. 
Sylloge Fungorum for example, in Winter's Die Pilze Deutschlands, P. A. Karsten’s 
Mycologia Fennica, and Fries’ more important publications, which latter must always 
be indispensable; books also of descriptive lichenology must be consulted. The 
new edition of Leunis’ Synopsis by A. B. Frank, and in its special line Frank’s Pflan- 
zenpathologie, are works to be recommended to the student. I must not be supposed 
to express an unfavourable opinion of other works because I do not mention 
them; my only purpose is to point out some books which will be of service 
to those who require direction in their reading. 
I have endeavoured to make myself as well acquainted as was possible with the 
special literature of my subject and to draw it into my service. I have made some 
use even of publications which appeared at the close of the year 1883 and the 
beginning of 1884 while my book was being printed. That some particulars have 
been omitted altogether, or been forgotten for the moment in the preparation of some 
of the sections, is what I should have expected beforehand, even if I had not 
subsequently noticed their omission. I must plead in excuse the extraordinarily large 
number of mycological communications of every possible size which have been 
published during the last twenty years. 
The number of publications on the Fungi is so large that it was impossible to 
quote them all, and to have done so would have transgressed the limits of practical 
utility. The more important references given in the text will in every case show 
where further details are to be obtained, especially with the assistance of Hoffmann’s 
Mycologische Berichte from 1865 to 1872, and Just’s Jahresbericht, which has 
appeared regularly since 1873. Special notices of the literature of the subject will be 
found in the separate sections of the work. 
The illustrations are for the most part the same as those in the earlier work. A 
certain number are new and drawn by myself; a smaller portion have been taken 
from other authors whose names are in every case given in the explanations appended 
to the figures. I express my warmest thanks for the permission to use these 
illustrations, and no less warm thanks to all those who have lightened my labours by 
their communications and by assistance of other kinds. 
A. pz BARY. 
STRASSBURG: June 30, 1884. 
