Biology, asked by Anonymous, 1 year ago

HI FRIENDS !

PLEASE CAN YOU MAKE ME UNDERSTAND ABOUT LIVERWORTS ?


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Answers

Answered by DavidOtunga
2
Bryophytes are distinguished into three types- hepaticopsida (also known as hepaticae or liverworts), anthoceropsida (also known as anthocerotae or hornworts) and bryopsida (also known as musci or mosses).

Hepaticopsida (Liverworts): The thallus of these species are dorsiventral and completely flattened, dichotomously branched with or without leaf-like appendages having some unicellular rhizoids, multicellular scales and completely parasitic sporophyte or possessive sporangium. They are occurring mostly on moist shady habitats like marshy ground, damp soil, water banks, deep in the woods, bark of trees, etc. some of the examples are: Riccia, Marchantia, Porella, Pellia, Sphaerocarpos (bottle hepatic, a plant).

Marchanitophyta or Marchanta: They are small dorsiventral flattened dichotomously branched thalloid plant with a length of approximate length of 2-10 centimeters. Each lobe possess an apical notch, a midrib, and a thick dorsal groove. Upper surface bears polygonal areas (aerolae), each with a ventilating air pore in the middle of the leaf. They represent underlying air chambers having some assimilatory or photosynthetic filamentous substances. Storage region occurs below the leaf. Ventral surface bears two types of unicellular rhizoids and having 4-6 rows of scales of thin line of amphigastria (on the either side of the leaves and midrib). The two types of commonly occurring rhizoids are anchoring or holding the smooth walled and capillary conducting tuberculate.

DavidOtunga: otherwise I have to edit it accordingly.
DavidOtunga: they carry out vegetative propagation.
DavidOtunga: Where are the CAPS.
DavidOtunga: ?????
DavidOtunga: LOVE IT
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