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Guilherme Mazui

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What is the Difference Between Amphicribral and Amphivasal?

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Amphicribral and amphivasal are two types of vascular bundle arrangements in plants. The key difference between them lies in the position of xylem and phloem within the bundle:

  • Amphicribral: In this arrangement, phloem surrounds the central strand of xylem. Examples of plants with amphicribral vascular bundles include Selaginella.
  • Amphivasal: In this arrangement, xylem surrounds the central strand of phloem. Examples of plants with amphivasal vascular bundles include Dracaena and Yucca.

Both amphicribral and amphivasal vascular bundles are of concentric type, meaning that one type of vascular tissue surrounds the other. They are also closed vascular bundles, lacking a cambium between xylem and phloem.

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  • What is the Difference Between Amphicribral and Amphivasal?
  • Comparative Table: Amphicribral vs Amphivasal

    • Comparative Table: Amphicribral vs Amphivasal

    Amphicribral and amphivasal are two types of concentric vascular bundle arrangements found in plants. The key difference between them is the position of xylem and phloem within the bundle:

    Feature Amphicribral Amphivasal
    Xylem Central core Surrounding
    Phloem Surrounding Central core
    Also known as Hadrocentric Leptocentric
    Examples Selaginella Dracaena, Yucca

    Both amphicribral and amphivasal vascular bundles are closed systems, meaning there is no cambium between the xylem and phloem.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.