State Board of Forestry. 87 



are of special interest has been given. The nomenclature conforms 

 to that of the United States Forest Service, and when it differs 

 from Gray's Manual, 7th edition, the synonym is given after the 

 common name. The common names are those commonly or locally 

 used in this State, and v^hen text-book common names are given 

 they are so indicated. The names are arranged in the order of 

 the frequency in which they are used, the most common being 

 first. In naming the associate trees, they have been arranged in 

 the order of their frequency, the first being the most numerous. 



The Malaceae (Apple Family) has been contributed by W. W. 

 Eggleston of the Bureau of Plant Industry, Washington, D. C, 

 who is a speciaUst in this group. 



Distribution. — The general distribution is given first, which is 

 followed by the distribution in Indiana. The number of individ- 

 uals occurring on a given area is defined by using the terms common, 

 frequent, rare, etc., which have no definite meaning, so the follow- 

 ing arbitrary meanings have been attached to the following words 

 and carefully followed throughout: very common, more than 25 

 trees to the acre; common, 5-25 trees to the acre; frequent, 1-5 

 trees to the acre; infrequent, 1 tree to 2-10 acres; rare, 1 tree to 

 every 11-100 acres; very rare, 1 tree to more than 100 acres; local, 

 when the distribution is circumscribed or in spots. 



The published records of the distribution of each species include 

 only those where the name and county or locahty are definitely 

 given. When an author mentions one or more trees and the loca- 

 tion incidentally, or when an author is not discussing the trees of 

 the State, such publications are not credited. In considering some 

 of the older pubUcations it should be borne in mind that scientific 

 accuracy was not as rigorously demanded as at present, and that 

 some of the authors were not trained botanists. When errors in 

 such publications are beyond dispute, attention has been called to 

 them. There are other records that are questionable, and atten- 

 tion will be drawn to them when it is noted that they are beyond 

 the known range of the species in the State. 



Additional records are those based on existing specimens de- 

 posited in the following herbaria: Deam, Bluffton; Depauw Uni- 

 versity, Greencastle; Grimes, R:!ssellville; Lilly, Indianapolis; Pur- 

 due University, Lafayette; Wabash College, Crawfordsville. 



The fact that a tree is not given as occurring in certain counties, 

 does not imply that it is not found there, but that it has not been 

 reported. It is believed that about one-half of our trees are foun4 

 in nearly every county of the State. 



