FRUITS | Types

Leaf Morphology: Venation

the arrangement of primary, secondary, and tertiary veins on a leaf

Pinnate	a single midrib and secondary veins branching off at intervals
Palmate	3 or more primary veins arising near the base of the blade and spreading out like a fan
Pinnipalmate	intermediate between pinnate and palmate; the lowermost pair of secondary veins is slightly larger
Parallel	many equal veins running in the same direction and joining at the apex
Dichotomous	repeated forking or Y-branching

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Pinnate

a single midrib and secondary veins branching off at intervals

Palmate

3 or more primary veins arising near the base of the blade and spreading out like a fan

Pinnipalmate

intermediate between pinnate and palmate; the lowermost pair of secondary veins is slightly larger

Parallel

many equal veins running in the same direction and joining at the apex

Dichotomous

repeated forking or Y-branching

All definitions are from J. W. Hardin, D. J. Leopold, and F. M. White. (2001). Harlow & Harrar's Textbook of Dendrology. Ninth edition. McGraw Hill, New York, New York, 534 pp. ISBN: 0073661716.