References 
      
      
        
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Source: | 
ITIS & Species 2000 Catalogue of Life Management Hierarchy, 2014, document (version Plantae)
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Acquired: | 
2014  | 
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Notes: | 
M. Ruggiero & D. Gordon, eds. 2014. Consensus Management Hierarchy for the ITIS & Species2000 Catalogue of Life. Contributors: Nicolas Bailly, Thierry Bourgoin, Richard Brusca, Thomas Cavalier-Smith, Daphne Fautin, Dennis Gordon, Gerald Guala, Michael Guiry, Paul Kirk, Elliot Lefkowitz, David Mabberly, David Maddison, Alan Paton, Michael Ruggiero, Peter Stevens, and Brian Tyndall  | 
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Reference for: | 
Ginkgoopsida  | 
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Source: | 
The PLANTS Database, database (version 4.0.4)
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Acquired: | 
1996  | 
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Notes: | 
National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov  | 
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Reference for: | 
Ginkgoopsida  | 
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Source: | 
The PLANTS Database, database (version 5.1.1)
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Acquired: | 
2000  | 
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Notes: | 
National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov  | 
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Reference for: | 
Ginkgoopsida  | 
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            Publication(s):
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Author(s)/Editor(s): | 
Mabberley, D. J.
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Publication Date: | 
2008  | 
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Article/Chapter Title: | 
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Journal/Book Name, Vol. No.: | 
Mabberley's plant-book: a portable dictionary of plants, their classification and uses, ed. 3  | 
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Page(s): | 
1021  | 
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Publisher: | 
Cambridge University Press  | 
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Publication Place: | 
Cambridge, United Kingdom  | 
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ISBN/ISSN: | 
0-521-82071-5  | 
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Notes: | 
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Reference for: | 
Ginkgoopsida  | 
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