1952. United States tree books: a bibliography of tree identification. 



U.S. Dep. Agric. Bibliog. Bull. 20, 32 p. (Out of print. Superseded by 



this publication.) 

 Frodin, David G. 



1964. Guide to the standard floras of the world (arranged geograph- 

 ically). 59 p. Dept. of Botany, Univ. Tenn., Knoxville, (Mimeog- 

 raphed.) 



Gunn, Charles R. 



1956. A guide to some recent State floras. Castanea'21: 33-38. 

 Harlow, William M., comp. 



1951. State publications on tree identification (United States and ad- 

 jacent Canada). 10 p. N.Y. State Univ. Coll. For. (Syracuse Univ.), 

 Syracuse, N.Y. (Mimeographed.) 

 Little, Elbert L., Jr. 



1965. Bibliography: trees and shrubs of the United States (identifica- 

 tion). BioScience 15: 743-744 (Nov.). 

 Rehder, Alfred. 



1911-18. The Bradley bibliography: a guide to the literature of the 

 woody plants of the world published before the beginning of the 

 twentieth century. 5 vol. Riverside Press, Cambridge [Mass.]. 

 (Publ. Arnold Arboretum no. 3) (Reprint in preparation, Otto Koeltz 

 Science Publishers, Koenigstein, West Germany.) 

 Rehder, Alfred. 



1949. Bibliography of cultivated trees and shrubs hardy in the cooler 

 temperate regions of the northern hemisphere. 825 p. Arnold Ar- 

 boretum Harvard Univ., Jamaica Plain, Mass. (Reprint in prepara- 

 tion, Otto Koeltz Science Publishers, Koenigstein, West Germany.) 

 Shetler, Elaine R. 



1965. Floras of the United States, Canada, and Greenland; a selected 

 bibliography with annotations. 12 p. Dep. Botany, Smithsonian In- 

 stitution, Washington, D.C. (Offset from typewritten copy.) 



B. CHECK LISTS 



Publications consisting of check lists or catalogs of plant species gen- 

 erally have been omitted, as they serve for identification only indirectly. 

 However, they help in verifying scientific and common names and in 

 determining current usage. Several are listed below. 



See also: Brown, Clair A. 1964b La.; Bryan, L. W., and Clyde M. 

 Walker 1966 Hawaii; Shanks, Royal E. 1952 Tenn. 



American Association of Nurserymen. 



1975. Sources of plants & related supplies, 1975-1976 edition. 60 p. 

 [Washington, D.C] 

 Bailey, L. H., and Ethel Zoe Bailey. 



1941. Hortus second. 778 p. Macmillan Co., New York. 



