Ectophloic siphonostele is found in...

Ectophloic siphonostele is found in

A

Adiantum and Cucurbitaceae

B

Osmundo and Equisetum

C

Marsilea and Botrychium

D

Dicksoni and Maidenhair ferm

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Verified by Experts

The correct Answer is:

b

The central pith is surrounded by xylem, pholem, pericycle and endodermis. The pholem occurs only out side the xylem e.g., Osumunda.

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