Ectophloic siphonostele is found in

Options

A. Adiantum and Cucurbitaceae
B. Osmunda and Equisetum
C. Marsilea and Botrychium
D. Dicksonia and maiden hair fern

Answer

B

Explanation

(b) In the ectophloic siphonostele, thhe xylem surrounds pith and this xylem is surrounded by phloem, pericycle and endodermis respecttively. e.g. Osmunda and Equisetum.