Peter F. Stevens is a professor of biology in the Department of Organismic and Evolutionary Biology and a Curator of the Arnold Arboretum and Gray Herbarium at Haward University, Cambridge, MA 02138-2094.
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Peter F. Stevens, How to interpret botanical classifications—suggestions from history, BioScience, Volume 47, Issue 4, April 1997, Pages 243–250, https://doi.org/10.2307/1313078
Peter F. Stevens is a professor of biology in the Department of Organismic and Evolutionary Biology and a Curator of the Arnold Arboretum and Gray Herbarium at Haward University, Cambridge, MA 02138-2094.
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