Question

Ectophloic siphonostele is found in
1) Osmunda and equisetum
2) Marsilea & amp; botrychium
3) Adiantum
4) Dicksonia maidenhair fern
And what is ectophloic siphonostele?

Answer 1

Ectophloic siphonostele is a monostele type of siphonostele in which a ring of xylem occurs around the pith, and a ring of phloem outside the xylem. It is found in Osmunda and Equisetum.