Ring like thickenings of lignin deposited on the wall of tracheids is described as

Options :
  1. Pitted
  2. Annular
  3. Scalariform
  4. Reticulate


Answer and Explanation :-

Answer: Option 2

Explanation:

The tracheary elements show various types of thickenings of secondary wall by deposition of wall material on the inner aspect of the cell wall in a specific manner

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