ALTAMAHA GRIT REGION OF GEORGIA 127 



states is revised according to one or the other of the new systems. 

 But fortunately most of the plants of the Altamaha Grit region 

 were not known to the systematists of the 18th century (as will be 

 shown farther on) , and their synonymy is not yet as involved as is 

 that of the plants of most other parts of Eastern North America. 



As the names of families form no part of the names of plants 

 and are comparatively few, it does not seem necessary that they 

 should be determined by strict rules. And as no two modern 

 authors agree exactly as to the correct name for each family, I 

 have used those family names which were best known a dozen 

 years ago. 



Pretty full synonymy for most of the species here enumer- 

 ated can be found either in Watson's Bibliographical Index, 

 MacMillan's Metaspermce of the Minnesota Valley, the fifth 

 volume of the Memoirs of the Torrey Botanical Club, or in Mohr's 

 Plant Life of Alabama. Consequently in this catalogue syno- 

 nyms are usually omitted except for such species as are not 

 mentioned in any of these works, or have had a recent change 

 of name. The use of parenthetical citations of authors, which 

 has become common in the last fifteen years, largely obviates 

 the necessity or giving synonyms in a work of this kind. A 

 slight variation of the parenthetical citation is here intro- 

 duced. Where a species has been transferred from one genus 

 to another, or a variety from one species to another in the same 

 genus, the name of the original author is put in parentheses, as 

 usual. But where a variety has been raised to a species, or 

 vice versa, brackets are used instead. There are a few cases 

 where a combination of both is necessary (e. g., Taxodium 

 imbricarmm) . This device will add somewhat to the definiteness 

 of citations where synonyms are omitted. 



The names of species believed not to be indigenous to the 

 region are printed in small capitals. Other accepted names are 

 in full- face type, and all synonyms (except those of genera) in 

 italics. The place of publication of every genus and species is 

 given, when known, and most of them I have verified personally. 

 The abbreviations of authors' names and of the titles of their 

 works are mostly those in common use, and will be understood 

 by all systematists. 



