Question

Differentation between pinnateand palmate leaf...?

Answer 1

Difference # Pinnate Compound Leaves:

1. It has a feather like outline.

2. Leaflets are borne on an elongated axis.

3. Leaflets bearing axis is a continuation of petiole or a branch of midrib.

4. Leaflets occur in two rows.

5. A joint is not present between the leaflet and its axis.

Difference # Palmate Compound Leaves:

1. The leaf resembles the palm of hand.

2. Leaflets are attached to a common point.

3. Leaflet bearing point represents the tip of petiole.

4. All leaflets are clustered together.

5. A joint is usually found between the leaflet and its point of attachment.

Hope it is helpful....

Answer 2

The key difference between pinnate and palmate is that the pinnate is thevenation pattern in which one main vein extends from the base to the top of the leaf and smaller veins arise from the main vein whereas the palmate is the venation pattern in which several main veins radiate from one point where petiole and leaf blade unite.  

Venation is an important characteristic of a leaf that can be used for identification of a plant. It is the arrangement of veins (primary, secondary and tertiary veins) in a leaf. The primary or main vein is the single middle prominent vein. The veins arising from the primary veins are the secondary veins. The primary veins are like a trunk of a tree while secondary veins are the branches of the same tree. The veins of a leaf can be arranged in different ways. Therefore, parallel, pinnate and palmate are these three types.

I hope my answer help to u and right