Question

How far does Selaginella one of the few living members of lycopodiales (pteridophytes) fall short of seed habit.

Answer 1

the megaspores and microspores germinate and give rise to female and male gametophytes , respectively. the female gametophytes in this plant are retained on the parent sporophytes for variable periods. the development of the zygotes into young embryos take place within the female gametophytes. this event is a precursor to the seed habit considered an important step in evolution.