One extant plant, the Ginkgo biloba, has dichotomous venation where the veins fork. In this article we will discuss about:- 1. Reticulate venation: Veins anastomose (intersect or fuse) and form a net-like pattern. Furcate venation, Reticulate and Parallel are the types of Venation. Diagram. This is a characteristic feature of monocot plants. In dicots, however, the veins of the leaf have a net-like appearance, forming a pattern known as reticulate venation. 7. Reticulate: Veinlets form a network as in leaves of dicotyledonous plants (china rose, peepul). Below is the diagram of dicot and monocot leaf, where we can see the venation pattern. The enclosed areas formed by the veins are known areoles. Veins may be similar in thickness, or some may be noticeably thicker than others. Leaves are collectively referred to as foliage, as in "autumn foliage". Banana, Bamboo. This is a characteristic feature of the dicot plants. If this design is net-like on both sides of midrib, the venation is reticulate [Fig. Draw floral diagrams from these formulae. E.g., Mango, Guava, Peepal. In dicots, however, the veins of the leaf have a net-like appearance, forming a pattern known as reticulate venation. 7.10 (a)]. This type of venation is found in some ferns, some seed ferns, and many flowering plants. E.g. Monocots have parallel venation; the veins run in straight lines across the length of the leaf without converging at a point. Ginkgo biloba is an example of a plant with dichotomous venation. I. Reticulate: Veinlets form a network as in leaves of dicotyledonous plants (china rose, peepul). The veins are chiefly made of vascular tissues, the xylem and phloem. Introduction. The main characteristic feature to distinguish the dicot and monocot leaf is the type of venation a leaf have. Phyllotaxy 5. Monocots have parallel venation in which the veins run in straight lines across the length of the leaf without converging. Furcate venation, Reticulate and Parallel are the types of Venation. called the leaf venation . Types of Leaves 3. Reticulate venation is found in dicot leaves while in monocot leaves venation is of parallel type. Types of venation - definition Venation is an arrangement of veins in the tissue of leaves or in the wing of an insect. Calophyllum and Eryngium are dicots parallel venation. Ever since a seminal review introduced a new integrative science of leaf venation (Roth‐Nebelsick et al., 2001), there has been increasing recognition across plant biology and ecology of the importance of leaf venation.We aimed to initiate new researchers into the breadth of classical … Unicostate or pinnate: This type of venation has only one principal vein or midrib that gives off many lateral veins which proceeds toward margin and apex of lamina of the leaf and forms a network. Within and across species, leaves are enormously diverse in venation architecture. Solution: 6. Observe the venation in as many leaves as you can without removing them from the plant. Types of venation - definition Venation is an arrangement of veins in the tissue of leaves or in the wing of an insect. Solution: Similar and Dioscorea are monocots having reticulate venation. In most leaves, the primary photosynthetic tissue, the palisade mesophyll, is located on the One can easily observe either the veins are striking or parallel by seeing a leaf. This is parallel venation [(Fig. Reticulate venation is of 2 types unicostate and multicostate. Veins are arranged in a net-like pattern on both sides of the midrib. Mention one exception to this generalization. A leaf (plural leaves) is the principal lateral appendage of the vascular plant stem, usually borne above ground and specialized for photosynthesis.The leaves and stem together form the shoot. There are two main types […] Venation in Leaves 2. Stipules 4. Modifications. Parallel venation Reticulate venation Veins run parallel to one another from the base to the tip of the leaf. Leaf Venation : Reticulate, Parallel : Pinnately, Palmately In the leaves of grass you might have seen that the veins ar e parallel to one another . 7.10 (b)]. Venation in Leaves: The arrangement of veins and the veinlets in the lamina is known as venation.