Reference:Griffin1964a
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Verbatim text: Griffin, J.R. 1964. Cone morphology in Pinus sabiniana. J. Arnold Arbor. 45: 260--273.
Author: Griffin, J.R.
Year: 1964
Title: Cone morphology in Pinus sabiniana
Journal: J. Arnold Arbor
Volume: 45
Pages: 260–273