Abstract
The current structure of 583 Magnoliopsida (Dicotyledons) and 584 Liliopsida (Monocotyledons) in the Dewey Decimal Classification (DDC) system reflects changes made when the life sciences were thoroughly revised in 1996. Since that time, considerable progress has been made in the phylogenetic classification of angiosperms (flowering plants). In particular, APG III, the 2009 version of the classification developed by the Angiosperm Phylogeny Group, is finding use as a tool to organize both botanical information and botanical collections. The Dewey Editorial Office has received a request to revise 583–584 in light of this taxonomy ―as appropriate‖; relevant revisions would be likely to include both structural and terminological changes. In deciding how to provide accommodation for APG III, the Dewey editorial team must address many issues: Is APG III now stable enough and accepted broadly enough to be adopted as the basis for a major revision of the DDC? Should revisions in 583–584 be coordinated with parallel revisions in other parts of the life sciences? What revision strategies can be considered in revising 583-584 to accommodate APG III? What are their various strengths and weaknesses? How have other major classification schemes (e.g., the UDC) accommodated APG III? Discussion of these issues is guided by the principles (―editorial rules‖) that govern development of the DDC.
Highlights
Advances in knowledge are problematic for the ongoing development of bibliographic classification schemes
During the 20th century, biological classification in general and botanical classification in particular has shifted away from a reliance on morphological similarities toward an emphasis on shared derived characteristics, that is, on features inherited from a common ancestor, an approach referred to as phylogenetic classification
The number of flowering plant classifications has blossomed: an article entitled ―Summary of recent systems of angiosperm classification‖ (Reveal, 2011) refers to seven systems established between 2007 and 2010 and presents yet another system. This proliferation of activity notwithstanding, the current version of the classification produced by the Angiosperm Phylogeny Group (2009), commonly referred to as APG III, is distinguished among these classifications as the product of an international group of botanists, a classification expressly developed to reflect the consensus of the botanical community
Summary
Advances in knowledge are problematic for the ongoing development of bibliographic classification schemes. The current structure of Magnoliopsida (Dicotyledons) and Liliopsida (Monocotyledons) in the Dewey Decimal Classification (DDC) system reflects changes made when the life sciences were thoroughly revised in 1996 (see New, 1996) This structure is based on the arrangement found in the article ―Angiosperms‖ in The New Encyclopedia Britannica (NEB) (1989), except that the basic outline from early editions was retained for 584. The number of flowering plant classifications has blossomed: an article entitled ―Summary of recent systems of angiosperm classification‖ (Reveal, 2011) refers to seven systems established between 2007 and 2010 and presents yet another (an eighth) system This proliferation of activity notwithstanding, the current version of the classification produced by the Angiosperm Phylogeny Group (2009), commonly referred to as APG III, is distinguished among these classifications as the product of an international group of botanists, a classification expressly developed to reflect the consensus of the botanical community. The entire process will be undertaken in the light of the principles (―editorial rules‖) governing DDC development
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