Embryo Development in Gymnosperms

Ans. Polyembryonic Development.

Types of Polyembryony:- According to Webber, polyembryony is classified into three different types :

i. Cleavage Polyembryony:- In the case of this type, a single fertilized egg gives rise to a number of embryos.

ii. Simple polyembryony:- In this type, a number of embryos develop as a result of the fertilization of several archegonia.

ii. Rosette polyembryony:- Additional embryos develop from the rosette cells in certain gymnosperms, this type of polyembryony is termed rosette polyembryony.