EVERYDAY SCIENCE

Detailed explanation-1: -1. Sporophytic Phase: Spore producing organs: Marsilea is heterosporous i. e., it produce two types of spores-microspores and megaspores. These spores are produced in microsporangia and megasporangia, respectively.

Detailed explanation-2: -Marsilea plant is a sporophyte, which is the dominant phase in the entire life cycle. The sporophyte comprises rhizome, roots and leaves. It reproduces vegetatively, as well as by means of spores.

Detailed explanation-3: -Marsilea is a heterosporous fern. It produces two types of spores i.e., the microspores and the megaspores. The microspores and megaspores are produced in microsporangia and megasporangia, respectively, and the sporangia are enclosed in special bean-shaped structures called sporocarps.

Detailed explanation-4: -Gametophyte of Marsilea: Marsilea is heterosporous. As such there are two types of gametophytes. Both the male and female gametophytes are endosporic.