Orchid aerial root (Phalaenopsis sp.), transverse section

  • Lauren Holden
  • Digital Images
  • Online

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Orchid aerial root (Phalaenopsis sp.), transverse section. Lauren Holden. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.

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SEM of an orchid aerial root. This cross sectional view shows the various layers of the root (from left to right: velamen, cortex, stele). Aerial roots are found above ground and help absorb water and minerals as well as providing support. Scanning electron micrograph; x 55; radius of root is approximately 1.4 mm.


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