Secondary vein

• Title

  Secondary vein

• Definition

  A secondary vein is the second thickest vein in a leaf which arise from the midrib (= primary vein) (Hickey, 1973).

• Notes

  In Lecythidaceae, the number of pairs of secondary veins is useful in classification. This is, however, related to leaf size and there is usually a great deal of overlap in closely related species.

• Related Terms

  Tertiary vein

• Broader Terms

  Primary vein

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