Question

Difference between hepaticopsida and anthocerospida and bryopsida

Answer 1

The differences between these three are listed below properly :

1. Hepaticopsida

The gametophytes developed in this class is differentiated in a dorsiventral manner.

The sporophyte of this class is not complex. It can be seen differentiated into foot and seta and also into capsule.

2. Anthocerotopsida

The gametophyte of this category is thalloid in nature. Scales as well as rhizoids are absent here.

The sporogonium possesses foot and also a meristematic part and also a capsule.

3. Bryopsida

The gametophyte is prostrate type. It is also thalloid and branched type.

Foot and seta as well as capsule are clearly differentiated in the sporophyte of this class.

Answer 2

Hepaticopsida, anthocerospida and bryosida

Explanation:

• The gametophytes area unit dorsiventrally differentiated. they'll be plant part (thallose) or differentiated into leaves and stem (foliose).
• In foliaceous varieties the leaves area unit organized in 2 or 3 rows on the axis and area unit continually while not mid-rib.
• The sex organs develop from superficial cells on the dorsal facet of the plant structure, except once they area unit terminal in position.
• The plant is also easy, or differentiated into foot and capsule, or into a foot, seta and capsule.
• The plant is plant part and dorsiventral, bearing easy and smooth-walled rhizoids; plant process rhizoids and ventral scales area unit altogether absent.
• The tissues of the plant structure area unit undifferentiated; air chambers and air pores area unit absent; every cell bears an oversized plastid and a conspicusous pyrenoid at intervals it.
• The sex organs area unit found to be embedded within the gametophytic tissue.  
• The antheridia arise from the layer cells of the plant structure on the dorsal facet of it; they develop at intervals the reproductive structure chambers, on an individual basis or in teams on the dorsal facet of the plant structure.
• The plant consists of prostrate, thalloid, branched protonema and erect ivy-covered reproductive structure.
• The gametophytic plant body consists of the stem, spirally organized leaves and also the sex organs (antheridia and archegonia) at its top portion.
• The rhizoids area unit cellular, branched and obliquely body part.
• The sex organs (antheridia and archegonia) develop from the superficial cells of the reproductive structure.