Reference:Pennell1925a
Verbatim text: Pennell, F. W. 1925. The genus Afzelia: A taxonomic study in evolution. Proc. Acad. Nat. Sci. Philadelphia 77: 335–373.
Author: Pennell, F.W.
Year: 1925
Title: The genus Afzelia: A taxonomic study in evolution
Journal: Proc. Acad. Nat. Sci. Philadelphia
Volume: 77
Pages: 335–373
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