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anatomy of flowering plants |
These are some of the anatomy of flowering plants. There are two main types of plant tissues, viz. meristematic tissue and permanent tissue. MERISTEMATIC TISSUES: The cells in the meristematic tissue have the capability to divide. Meristematic tissue is found in growth regions of plants, e.g. root tip, shoot tip, buds, etc. The meristematic tissues are further divided into two types, viz. primary and secondary meristems. Primary Meristems: The meristematic tissues which appear early in the life of a plant and which are responsible for the formation of primary plant body; are called primary meristem. There are two types of primary meristem, viz. apical meristem and intercalary meristem. (a) Apical Meristem: As the name suggest, the apical meristem is found at the apex of root and stem. During the formation of leaves and elongation of stem, some cells of the apical meristem are left behind from the shoot tip. These cells constitute the axillary bud. Axillary buds are capable of forming a branch or a flower. (b) Intercalary Meristem: The intercalary meristem is found between mature tissues. In grasses, the intercalary meristem helps in regenerating parts which were removed by the grazing animals. |