What are the two types of leaf blade?

What are the two types of leaf blade?

Dentate blades have teeth pointing outward and are large. Crenate blades have rounded or scalloped teeth. Undulate blades form a wavy line on their edge that bends slightly inward and outward in succession. Sinuate blades are wavy.

What are palmate leaves?

A palmately compound leaf has its leaflets radiating outwards from the end of the petiole, like fingers off the palm of a hand. Examples of plants with palmately compound leaves include poison ivy, the buckeye tree, or the familiar house plant Schefflera sp. (commonly called “umbrella plant”).

Why are the blades of most leaves flat?

The majority of leaves are ‘flat’ so as to capture the maximum amount of light, protect the stomata beneath the leaf and lots of plants have pointed tips to help siphon off the water from the surface so that the surface is able to take up CO2.

Why are leaves darker on top and lighter on bottom?

Succulent leaves tend to be lighter, as their cells are quite watery, so the concentration of chlorophyll on the surface is lower. The upper part of a leaf is darker, owing to the high concentrations of chloroplasts present, as compared to the lighter bottom part.

Where is lamina in leaf?

The flat and expanded portion of the leaf in its entirety is known as the lamina. In short, the blade of the leaf or the leaf blade is called the lamina of a leaf.

What is the difference between pinnate and bipinnate leaves?

Pinnately-compound leaves have their leaflets arranged along the middle vein. Bipinnately-compound (double-compound) leaves have their leaflets arranged along a secondary vein, which is one of several veins branching off the middle vein.

What trees have pinnate leaves?

Trees With Pinnate Leaves Hickory, ash, walnut, pecan and black locust are all pinnate-leafed trees that can be found in North America.

What is the difference between pinnate and palmate leaves?

Based on the venation patterns, leaves can be pinnate or palmate as well. In pinnate pattern, only one main vein is there while in palmate patter three or more main veins can be present. Pinnate venation shows a feather-like structure while palmate venation shows a palm-like structure. This is the difference between pinnate and palmate.

What is the difference between pinnate venation and palmate venation?

In palmate venation, there are several main veins arising from a common point where leaf blade and petiole unite. This is the main difference between pinnate and palmate.

What is an odd pinnate leaf?

If a pinnately compound leaf consists of a terminal leaflet, it has an odd number of leaflets. Then we call it an odd-pinnate. If it has even number of leaflets, we call it as even-pinnate. Many palms, ferns and most cycads show pinnate venation and pinnate leaves. What is Palmate?

Which of the following is an example of palmate compound leaf?

Moreover, some examples of palmate compound leaves are poison ivy, buckeye, horse chestnut, etc. Pinnate and palmate are two types of compound leaves, containing leaf blades with two or more sub-units.