The image to the right shows the region where Secondary Phloem is located in a young stem of Pinus. It is difficult to discern much more at this magnification. |
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Cross-Section of Secondary Xylem & Phloem of Pinus |
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The Secondary Phloem in Pinus lacks fibers and is composed of Sieve Cells, Albuminous Cells & Parenchyma. The Parenchyma cells have dark contents. Otherwise it is impossible to discern the other cell types. Note the collapsed Secondary Phloem on the far right side of the image. |
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| Secondary Phloem in Pinus. The Phloem Parenchyma contain Druse Crystals and darkly stained deposits. It is hard to distinguish other cell types in Cross-section. | |
