Gymnosperm Stem: Resin Ducts in Four Year Pinus

Gymnosperm Stem: Resin Ducts in Four Year Pinus | Source: Berkshire Community College Bioscience Image Library | License: CC0
  • Title: Gymnosperm Stem: Resin Ducts in Four Year Pinus
Gymnosperm Stem: Resin Ducts in Four Year Pinus | Source: BCC Bioscience Image Library

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