Fig. Eg., Guava leaves. Elliptical: An ellipse-shaped leaf, e.g., guava, jack, etc. The two different types of leaves found in a plant are: When a single lamina is connected to the main stem by a petiole, the leaf is said to be simple. Eg., Bignonia unguiscati. Radical present near the roots 2. For each of these functions, they have been modified into different forms. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Biology Morphology of Flowering Plants part 13 (Leaf: parts-lamina, Petiole, Stipule) CBSE class 11 XI Lanceolate: Lance-shaped leaf, e.g., bamboo, Nerium, etc. In some plants, it takes up the responsibility of reproduction also. Therefore, they store water and nutrients. The leaves get modified into thread-like structures called tendrils. Veins can be observed as lines running on the surface of the leaf. Plants are an essential part of the ecosystem. Compound leaf: Here the lamina is divided in to a number of leaf like lobes called the leaflets. 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Leaves may be simple or compound. Types of Leaf Forms. For eg., Pea, palm leaves. Structure of leaf (1) A leaf consists mainly of two parts lamina … types of leaf based on leaf lamina. When more than two leaves develop at the nodes to form a whorl of leaves, it is called whorled phyllotaxy. (i) The leaf is a lateral dissimilar appendage of the stem. R e t i c u l a t e Venation: This type of venation is … High pressure laminates are extremely durable and can take heavy loads. For eg., Opuntia. Some are modified into tendrils to provide support to the plant. Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. These can be further differentiated into: Palmately compound leaf & Pinnately compound leaf. Leaves are thin, flat organs responsible for photosynthesis in the plants. In simple leaves, the lamina is continuous. A plant has large number of leaves. 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