: an arrangement or system of veins (as in the tissue of a leaf or the wing of an insect)
What are the types of leaf margin?
Leaf Edges or Margins
- Entire Leaf: The margin is even and smooth around the entire leaf edge.
- Toothed or Serrated Leaf: The margin has a series of toothlike pointed teeth around the entire leaf edge.
- Lobed Leaf: The margin has an indention or indentions that go less than halfway to the leaf midrib or midline.
What are the 4 types of leaf arrangements?
The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled. Plants with alternate and spiral leaf arrangements have only one leaf per node.
What are the main parts of leaf?
Leaves have two main parts: The leaf blade and the Stalk or the petiole.
- The leaf blade: It is also called the lamina. It’s generally broad and flat.
- The petiole: It is the stalk-like structure which connects the leaf blade to the stem. The petiole has tiny tubes, that connect the veins on the leaf blade to the stem.
What are the three basic leaf shapes?
Understanding basic botanical terminology and plant anatomy will help you decide which of the three leaf arrangement types a plant exhibits. Alternate leaves, whorled leaves and opposite leaves are the three different types of leaf arrangements displayed by woody plants.
What is the main function of leaf?
Leaf function The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy.
What are three types of leaf arrangements?
There are three basic types of leaf arrangements found in trees and shrubs: alternate, opposite, and whorled. In an alternate leaf arrangement, there is one leaf per plant node, and they alternate sides.
What kind of venation does a gymnosperm leaf have?
Angiosperms have either parallel or reticulate venation with intercostal veins. On the other hand gymnosperms often have parallel venation with few branching (intercostal) veins. Extant gymnosperms such as Gnetum have strikingly angiospermous leaves.
What kind of leaf venation does a tap root have?
When the veins in leaves are irregularly distributed to form a channel, it is known as reticulate Venation. Plants with reticulate venation in their leaves are likely to have tap roots. Plants like carrot or rose have leaves with reticulate venation and tap roots. Answer verified by Toppr
What kind of venation does a Maple Leaf have?
Palmate-type Reticulate Venation. Maple leaves feature palmate venation. In palmate-veined leaves, the principle veins extend outward from the base of the leaf in a fanlike pattern. Trees with this type of leaf venation include grapes and maple. Palmate venation can be either divergent, where veins radiate from the center to the edge of the leaf or convergent, which is when the veins curve towards the center of the leaf.