Botany lecture notes

Anatomy of Monocot Stem: Key Points with PPT

ts of monocot stem

Internal Structure of Monocot Stem (Transverse Section, T.S.)

The anatomy or internal structure of a monocot stem can be studied by a Transverse Section (T.S.) taken through the internode of a monocot plant such as grass, bamboo, maize, Asparagus etc. The main difference of monocot stem from dicot stem is that, here in monocots the ground tissue is NOT differentiated into Cortex and Endodermis. The anatomical features of a typical monocot stem are summarized as key points below:

@. The T.S. of a monocot stem is usually circular in outline

@. Typically a monocot stem consist of FOUR tissue systems.

(1).  Dermal tissue system

(2).  Hypodermal tissue system

(3). Ground tissue system

(4). Vascular tissue system

(1). Dermal tissue system

@. Dermal tissue system constitute the epidermis

@. Epidermis forms the outermost layer

@. Usually the epidermis is single layered and made up of parenchymatous cells

@. Epidermal cells are compactly packed without any inter-cellular spaces

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