Question

comparison between sporophyte stage of riccia and marcantia​

Answer 1

The Sporophyte of Riccia

1. Zygote divides by a transverse wall forming a two-celled embryo.

Absence of columella.

2. Absence of columella.

3. Sporogenous tissue is differentiated into spores only.

4. Sporophyte is completely dependent on the gametophyte for nutrition.

Of Marcantia:

1. Zygote divides by transverse and longitudinal wall forming a four-celled embryo.

2. Absence of columella.

3. Sporogenous tissue is differentiated into spores and elaters.

4. Same as in Riccia.