Question

What is Bryophyta?
Can anyone xplain me?​

Answer 1

Bryophytes :

• They are simplest non vascular land plants with undifferentiated plant body.

• Bryology - Study of Bryophyta.

• Hedwig - Father of bryology.

• S.R Kashyap - Father of Indian bryology.

• Bryophytes are known as the amphibians of the plant kingdom.

• They grow in the dense patches on the most shady places like wall ,damp soil ,tree trunks, etc.

Features :

• Habitat - Mainly terrestrial.

• Some are aquatic. eg. Riccia fluitans.

• Epiphyllous - Eg. Radula.

• Plant body - Thallus like and Prostrate. Eg. Riccia , Anthoceros, Marchantina.

• Root like structures called rhizoids fix them to the soil.

• Plant body is differentiated into stem like and leaf like structures.

• Vascular tissues are absent.

• Vegetative reproduction by fragmentation, budding ,tubers ,etc.

• Asexual by Gemmae - asexual buds in liverworts.

• Sexual reproduction - the vegetative plant body in the gametophyte and all members are homosporous.

• Multicellular sex organs present and are found in clusters.

• Male reproductive organs is the club shaped antheridium and the female part is the plus shape archegonium.

• Antherozoid fuses with the egg to form the zygote.

• Antheridium produces biflagellated antherozoids which are motile and archegonium produce the eggs.

• The sporophyte is not free living and it derives nourishment from the photosynthetic gametophyte.

• Haploid spores are formed in the sporophyte after news is and dispose germinates to form gametophyte.

• Alternation of generation present - haploid phase alters with the diploid phase.

• Both phases multicellular.

• The dominant photosynthetic free-living stage is gametophyte.

• The sporophyte is short lived and depends on the gametophyte.

• Further the bryophytes are classified into three classes -

1. Hapticospida ( Liver worts )
2. Anthocerotopsida ( Horn worts )
3. Bryopsida (Moss)

Answer 2

Explanation:

a division of small flowerless green plants which comprises the mosses and liverworts. They lack true roots and reproduce by spores released from a stalked capsule.