X INTRODUCTION 



For instance, in the entry of each new combination we find the reference 

 to the basionym ; likewise in the entry of each basionym the reference to 

 the new combination is given. 



All the names, legitimate and illegitimate, which do not appear in the 

 « Index Filicum * and its previous supplements are printed in bold face. 

 They are provided with their complete bibliographical reference, quoted 

 according to the « Guide to the citation of botanical literature » of the 

 International Code of Nomenclature (ed. 1961). The names of the authors, 

 when too long, are abbreviated ; the abbreviations adopted are given in 

 the index of author's names. The titles of books are abbreviated in 

 conformity with common usage in botanical taxonomy ; the abbreviations 

 of the serials are given in the Ivdex abbreviationum periodicorumy at the 

 end of this book. The number of the volume is printed in bold-face type 

 followed by a colon. The illustrations are indicated with t. (plate) and f. 

 (figure) ; the various numbered parts of a compound plate or figure are 

 indicated in brackets immediately after the number of the plate or figure 

 [e. g. : t.8(3) or t.8(A)]. The year quoted in each bibliographical reference 

 is that of effective publication. 



Names that are later homonyms are listed like legitimate names, but 

 in order to show that a name is a later homonym, I have added after its 

 citation the name of the authority of the earlier homonym, preceded by 

 non and placed in square brackets. 



I have used only three kinds of sign to separate the various information 

 in an entry. In the entries of novitates I have used the sign — before a 

 cross-reference to basionyms, replaced names or names of taxa changed in 

 rank. The same sign preceeds the indication of the geographical distri- 

 bution. In the entries of basionyms and names of taxa changed in rank or 

 replaced by new names I have adopted the sign = before a cross reference 

 to the new combinations or new names. Finally I have used the sign - for 

 separating different combinations or names in the same entry. 



The entries do not always end with a full stop. When the last word is 

 a full author's name, I have omitted the full stop, in order to prevent its 

 being regarded as an abridged name. 



Generic names 



r 



The generic names, whether legitimate or not, are printed in bold-face ca- 



ABACOPTERIS], with 



graphic or orthographic errors or to cor 



The generic names established betwe< 



with author and complete bibliographical 



typo 



1960 are provided 



Filicum 



name, without bibliographical citation ; however, when the reference given 



by Christensen is incorrect or incomplete, I have added the full amended 

 citation. 



The type of the genus is given only when it was explicitly established 

 by the author of the genus and only for those genera proposed between 

 1934 and 1960. The name of the type is printed in italics. 



