Reference:Palmer1925a
Revision as of 12:49, 20 August 2020 by imported>Unknown user
Verbatim text: Palmer, E. J. 1925. Synopsis of North American Crataegi. J. Arnold Arbor. 6: 5–128.
Author: Palmer, E.J.
Year: 1925
Title: Synopsis of North American Crataegi
Journal: J. Arnold Arbor
Volume: 6
Pages: 5–128