What is the difference between pinnate and palmate venation?
In palmate venation the veins radiate like a fan from the petiole. In pinnate venation the veins extend from a midrib to the edge. In some leaves the veins run parallel, as in the Ginkgo leaf. In leaves of some plants like the grasses, lilies, and corn, the veins run parallel to each other down the blade.
What is pinnate and palmate compound leaf?
Pinnate refers to a condition of compound leaves with twig-connected petioles of varying lengths and rows of smaller sub-leaves above the axil while palmate refers to a condition of compound leaves, having leaflets form and radiate from a single point of attachment called the distal end of the petiole or rachis.
What is pinnate venation?
Pinnate venation is a characteristic, often used as a diagnostic or identification tool for certain types of leaves on trees, shrubs and other herbaceous plants. A “pinnate” venation describes a visible pattern on a leaf where there is a dominant center vein, or “mid-rib” with other veins branching off from the middle.
What is the difference between pinnate palmate and parallel leaf venation?
The key difference between pinnate and palmate is that the pinnate is the venation 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 …
What are the examples of parallel venation?
Parallel venation: In some leaves, the veins run parallel to each other. Such leaves have are said to have parallel venation. Example: banana, grass and wheat.
What is pinnate and bipinnate?
bipinnate: pinnately compound leaves in which the leaflets are themselves pinnately compound; also called “twice-pinnate”. tetrapinnate: pinnately compound leaves in which the leaflets are themselves tripinnate. unipinnate: solitary compound leaf with a row of leaflets arranged along each side of a common rachis.
What is a palmate leaf definition?
: resembling a hand with the fingers spread: such as. a : having lobes radiating from a common point a palmate leaf — see leaf illustration.
Are palmate leaves compound?
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”).
What is the other name of pinnate venation?
Parallel venation is the venation in which the veins run parallel to each other. Pinnate venation is also known as unicostate venation. In this type, the lamina has a single principal vein or midrib.
What types of venation does the leaf has?
There are two types of venation, reticulate and parallel venation.
What type of venation does the leaf has?
Answer: The arrangement of veins in a leaf is called the venation pattern; monocots have parallel venation, while dicots have reticulate venation. The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled.
Which is an example of a pinnate venation leaf?
Pinnate Venation: The veins extend from the midrib to the leaf margin. Examples include oak and cherry leaves. Palmate Venation: The veins radiate in a fan shape from the leaf petiole. Examples include maple and sweetgum leaves.
What’s the difference between a palmate and a pinnate leaf?
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.
Where are the veins in a pinnate plant?
Pinnate venation is one of the most common venation patterns shown by plants. One main vein extends from the base of the leaf to the top of the leaf. The secondary veins are branching off from the primary vein.
When do the veins converge in a palmately venation?
Palmately parallel venation : In this type several veins arise from the tip of the petiole and they all run parallel to each other and unite at the apex. In grass they converge at the apex and hence it is called convergent. In Borassus (Palmyra) all the main veins spread out towards the periphery. Hence it is called divergent.