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  Conifers of the World: The Complete Reference - James E. Eckenwalder - Google Books

  https://books.google.de/books?id=QGmO_CtTPAEC&pg=PA281#v=onepage

  Researched for more than three decades, this definitive work provides up-to-date descriptions of all the true conifers of the world, including 545 species of trees and shrubs. Written for accessibility to both horticultural and botanical audiences, it is…

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  Conifers of the World: The Complete Reference - James E. Eckenwalder - Google Books

  https://books.google.de/books?id=QGmO_CtTPAEC&pg=PA116#v=onepage

  Researched for more than three decades, this definitive work provides up-to-date descriptions of all the true conifers of the world, including 545 species of trees and shrubs. Written for accessibility to both horticultural and botanical audiences, it is…

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