Crataegus in the northeastern and central United States and adjacent Canada

@article{Palmer2008CrataegusIT,
  title={Crataegus in the northeastern and central United States and adjacent Canada},
  author={Ernest Jesse Palmer},
  journal={Brittonia},
  year={2008},
  volume={5},
  pages={471-490}
}
  • E. Palmer
  • Published 6 September 1946
  • Biology
  • Brittonia
In the preparation of a revised treatment of the genus Crcataegus in the northeastern United States and adjacent Canada, to be published soon, it has been found necessary to propose a new specific name to replace one invalidated by all earlier homonym and to change the status of a number of names from species to varieties or forms. And in treating the species under a broader concept than that of the original authors, many names are placed in synonymy. This more conservative treatment of the… 
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    The American Naturalist
  • 1983
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