Vascular cambium

Vascular cambium is a tissue found in the stems of perennial dicots.

Related Topics:
Tissue - Dicot

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The vascular cambium is a lateral meristem that develops as a hollow cylinder or as longitudinal strands, replacing the primary vascular tissues in dicotyledons and gymnosperms. It is absent in many herbaceous angiosperms.

Related Topics:
Meristem - Dicot - Herbaceous - Angiosperms

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The vascular cambium is the source of both the growth of secondary xylem tissues (growth inwards) and secondary phloem tissues (growth outwards), and is hence located between these tissues in the stem. (The word secondary differentiates these new tissues from the primary xylem and phloem, which derive from the apical meristem.)

Related Topics:
Xylem - Phloem - Apical meristem

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The vascular cambium usually consist of two types of cells;

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• Fusiform initials (long cells with tapered ends)
• Ray initials (almost isodiametric cells - smaller and round to angular in shape)

Vascular cambium is a part of the plant's meristem - series of tissues consisting of embryonic (incompletely differentiated) cells from which other (and more differentiated) plant tissues originates.

Related Topics:
Meristem - Cell

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Vascular cambium: Nutritional use ►