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Gymnosperm Stem: Medullary Rays Three Year Pinus

cross section: Pinus stem

magnification: 400x

Triarch quadruple stain

 

Berkshire Community College Bioscience Image Library

 

Because of the greater production of xylem, the vascular cylinder is dominated by radially arranged rays of secondary xylem interspaced with medullary rays of parenchyma cells. Conspicuous resin ducts are present throughout the xylem.

 

Visit the BCC Bioscience Image featuring the Microscopic World of Plants. www.berkshirecc.edu/biologyimages

 

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Uploaded on August 2, 2017
Taken on February 10, 2014