Vascular cambium

From Free net encyclopedia

The vascular cambium is a lateral meristem: The vascular cambium is the source of both the secondary xylem (inwards) and the secondary phloem (outwards), and hence is located between these tissues in the stem.

The vascular cambium usually consist of two types of cells:

Fusiform initials (tall cells, axially-oriented)
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 originate.

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