REFERENCES 



Bailey, L. H. The cultivated evergreens. Newr York. The Macmillan 

 Co. 1923. Keys and descriptions by Alfred Rehder. Illustrated. 



Bailey, L. H. ed. Standard cyclopedia of horticulture. Newr York. The 

 Macmillan Co. 1914-1917. Keys and short descriptions, with a few 

 illustrations. Cultivated trees, both native and imported, are in- 

 cluded. 



Bailey, L. H., and Bailey, E. Z. Hortus. New York. The Macmillan 

 Co. 1930. Keys and short descriptions of cultivated trees and other 

 plants. An abridged encyclopedia, including culture. 



Blakeslee, A. F., and Jarvis, C. D. Trees in winter. New York. The 

 Macmillan Co. 1913. Illustrations of native trees and descriptions. 



Illick, J. S. Tree habits, how to know the hardwoods. Washington. 

 1924. Illustrations, descriptions and keys to native deciduous trees. 

 Good diagrams and plates, particularly of bark. 



Muenscher, W. C. Keys to woody plants. Ithaca, N. Y. 1922. Sum- 

 mer and winter keys to genera and species likely to be found in 

 New York State. A small pamphlet. 



Rehder, Alfred. Manual of cultivated trees and shrubs hardy in North 

 America. New York. The Macmillan Co. 1927. Very complete 

 descriptions and keys to genera and species of native and imported 

 trees. The main reference for this KEY. 



Rogers, J. E. The tree book. Doubleday, Page & Co. 1914. De- 

 scriptions and illustrations of wild and cultivated forms written in 

 an entertaining style with many additional facts of interest. 



Trelease, W. Plant materials of decorative gardening. Urbana, 111. 

 1926. Genera and species keys, and descriptions of native and im- 

 ported trees. In brief form. Very complete. 



Trelease, W. Winter botany. Urbana, 111. 1925. Keys to genera and 

 species, short descriptions, and plates of twigs of deciduous trees 

 and shrubs. Has been very valuable for this KEY. 



Wiegand, K. M., and Foxworthy, F. W. A key to the genera of woody 

 plants in winter. Ithaca, N. Y. 1908. A pamphlet in key form for 

 field use. Includes cultivated genera. 



Local material on trees published by State Experiment Stations, State 

 Universities, or Departments of Forestry. 



