Answer: Leaf venation: The design made by veins in a leaf is called leaf venation. The pattern of leaf venation determines the type of roots present in a plant. Venation. Different plants show different types of venation. the type of venation that the illustrated leaf has. Two leaves at the node, opposite to each other, demonstrate opposite arrangement. There are the following two types of leaf venation: Reticulate venation: If the design of veins makes a net-like structure on both the sides of midrib then it is called Reticulate venation. Ex: Dicotyledonous plants like a rose plant. For example, mango leaf, gram leaf. compound. The two types of venation are. Leaf division: 3, 5 or 7 lobes (each lobe is less than 4 inches in size) Leaf edge: various; smooth and toothed. leaf made of several leaflets. sessile. Answer: (a) parallel venation, fibrous roots Explanation: Plants with parallel leaf venation have fibrous roots while plants with reticulate leaf venation have taproots. Hints: look for the winged seeds called samaras. Generally, there are two types of venation: Reticulate venation: In a reticulate venation, the veinlets are randomly arranged and form a complex network of veinlets. whorl. three or more leaves growing from the same node on a stem. 6. Leaves with linear venation are those with numerous lateral veins that run essentially parallel to each other and are connected laterally by minute, straight veinlets (Figure 3–39). (b) The design made by veins in a leaf is called the leaf venation. leaf edge that is smooth and unbroken. A common type of parallel venation is that found in plants of the grass family, where the veins run parallel from the base to the apex of the leaf. Answer: The process of vein formation on the leaf is known as venation. (a) parallel venation, fibrous roots (b) parallel venation, taproot (c) no relation exists in leaf venation and type of roots (d) reticulate venation, fibrous roots. parallel. (a) Two types of roots are taproot and fibrous root. https://lizzieharper.co.uk/2013/11/leaf-shape-margins-venation-and-position Reticulate venation; Parallel venation; Reticulate venation – Reticulate venation includes irregular vein arrangement for the creation of a network.. There are three basic types of leaf arrangement:Trees with alternate arrangement have one leaf at each node. The arrangement of veins in a leaf is called the venation pattern; monocots have parallel venation, while dicots have reticulate venation. Answer. Venation Venation deals with the arrangement of veins. The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled. If the leaf have reticulate venation then it has taproot and if the leaf have parallel venation then it has fibrous root. leaf attached directly to a branch. Associated with this, Late Cretaceous angiosperm leaves display a high degree of morphological plasticity. 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