Question

Match ligule with one of the followings
A. Root
B. Leaf
C. Stem
D. Rhizome

Answer 1

A ligule is a thin outgrowth that occurs in several kinds of grasses and sedges. A ligule, such as that of a ray floret in plants in the daisy family Asteraceae, is also a strap-shaped extension of the corolla.

Complete answer: The ligule is a part of the leaf located at the junction of the leaf blade and the leaf sheath. It can take many forms, but some sort of translucent membrane or a fringe of hair is usually present. At the junction of the leaf sheath and blade, a ligule can also be known as a membrane-like tissue or a row of delicate hairs normally found in grass. Like the leaf sheath, the ligule appears to be a continuation of the leaf sheath and encircles or closes the stem. Membranous, a fringe of hair (ciliate) and absent or incomplete are the three basic types of ligules. Most grasses have ligules, and the clear characters for distinguishing genera and certain grass species are determined by the shape, length, and appearance of the ligule margin. The stem is aerial and creeping horizontally or erect or sub-erect on the substratum of the plants whose leaves are bearing ligules. The ligule is a leaf-like structure located on the adaxial side of the leaf. As a bulbous base, the Ligule has a tiny structure called a glass podium. It Is a tissue that collects water. The ligule is a water-absorbing organ that helps to keep the leaf and sporangium moist. The ligule is made up of elongated vacuolated cells. It also secretes mucilaginous substances made up of proteins and carbohydrates.
Hence, option B is the correct answer.

Note: In Lycopodium there is a ligule, a strange tongue-like outcrop from the surface of the leaf at the base of the leaf. Leaves of Lycopodium and Selaginella can be distinguished on this basis. The ligule, which occurs very early in the growth of the leaf, is surprisingly complex at maturity.