ALTAMAHA GRIT REGION OF GEORGIA 129 



least) in the chronological summary of my travels a few pages 

 back, if desired. 



Some authors of local floras have been particular to cite 

 localities only for existing herbarium specimens. This of course 

 is the safest rule to observe when one is writing up the flora of 

 a region which he has not explored much himself, but in the 

 present case it would be totally inadequate. Had I followed 

 this rule I would have been restricted to about 550 specimens 

 collected by myself and not over 50 collected by other persons, 

 representing perhaps 500 species. As it is, I have usually tried 

 while in the field to note each plant at least once in each county 

 each season, and I have probably by this time ten stations for 

 each species, on the average (over a hundred for some, though), 

 making several thousand individual records in all, which is prob- 

 ably more than the total number of specimens from the whole 

 state of Georgia represented in any one herbarium at present. 



The records of local distribution in the following list are based 

 solely on my own notes and collections. This eliminates any 

 variation due to different personal equations, except where my 

 own views may have changed unconsciously between seasons. 

 Some species collected in this region by other botanists have been 

 enumerated a few pages back, but to include them, and all other 

 available specimens, would not have added one per cent, to the 

 number of species in the list or the number of stations. An- 

 other reason for not including specimens collected by others is 

 that most of them have the serious defect of not being accom- 

 panied by sufficient indication of habitat, which renders them 

 almost worthless for my purposes; for throughout this work 

 habitat is regarded as of the greatest importance. Further- 

 more, completeness is not essential in a preliminary sketch of 

 this kind. 



now about 2500 numbers (representing perhaps 1700 species), can be 

 found at the New York Botanical Garden, U. S. National Herbarium, 

 Gray Herbarium of Harvard University, Missouri Botanical Garden, and 

 Edinburgh Royal Botanic Garden. Partial sets are in the possession of 

 the Field Columbian Museum, British Museum, University of Nebraska, 

 and the Botanical Gardens at Kew, Berlin, Paris, and Vienna. Most of 

 the trees and shrubs are represented in the herbarium of the Arnold 

 Arboretum. From a dozen to a hundred or more specimens are in the 

 collections of each of several smaller institutions and private individuals. 



