In Pinus, male cone bears a large number of
ligules
anthers
micro- sporophylls
mega- sporophylls
Cleavage polyembryony occurs in
Pinus
Mini Cycas
Cycas
Ephedra
A.
Pinus
Polyembryony is common in gymnosperms. It is because more than one archegonia are fertilized and more than one zygotes are formed. All develop into embryos but only one of them succeeds in developing complete embryo.