criteria for classifying the bryophyta
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Answer:
Depending upon this criteria plants areclassified as Thallophyta, Bryophyta, and Pteridophyta. The thallophytes, the bryophytes, and the pteridophytes have inconspicuous reproductive organs hence they are therefore called 'cryptogamae', or 'those with hidden reproductive organs'.
Answer:
Classification of Bryophytes
Bryophyta (Gk bryon= moss, phyton=plant, represent a group of plants that includes liverworts, hornworts and mosses growing predominantly in amphibious environment. Bryophytes are classified into three classes namely Hepaticopsida, Antherocerotopsida and Bryopsida.

Classification of Bryophytes
i Hepaticopsida:

Common name: liverworts
Gametophytic plant body: may be thallose or foliose. Aseptate rhizoids.
Sex organs: Present on dorsal surface of thallus.
Sporophyte or sporogonium: Differentiated into foot, seta and capsule.
Elaters: Generally present, absent in some like Riccia
Sporogenous tissue: Develops from endothecium
Dehisce of capsule: Irregular
Examples: Riccia, Marchantia, Sphaerocarpus
ii Anthocerotopsida:

Common name: hornworts
Gametophytic plant body: Thallose. Aseptate rhizoids.
Sex organs: Present on dorsal surface of thallus.
Sporophyte or sporogonium: foot, short meristematic region and capsule.
Elaters: Pseudoelaters are present in the capsule.
Sporogenous tissue: Develops from amphithecium and endothecium form sterile columella.
Dehisce of capsule: Irregular
Examples: Anthoceros, Megaceros, Notothylus
iii Bryopsida:

Common name: Mosses
Gametophytic plant body: Thalloid protonema and leafy gametophore.Obliquely septate rhizoids.
Sex organs: Develop from the superficial cells at the apex of leafy gametophore.
Sporophyte or sporogonium:
Foot, seta and capsule.
Foot, seta and capsule.
Elaters: Absent
Sporogenous tissue: Develops from outer layer of endothecium. Inner layer forms sterile columella.
Dehisce of capsule: Regular
Examples: Funaria, Sphagnum, Polytrichum