General characters of Bryophytes

General characters of Bryophytes

1. General characters and classification of Bryophytes Prepared by: Dr . E. Gayathiri Department of Plant Biology and Plant Biotechnology, Guru Nanak College, C hennai

2. Habitat of Bryophytes General characters of Liverworts Hornworts Mosses Economic importance of Bryophytes

3. Bryophytes- general characteristics Bryophytes are a group of small, simple, green land plants of which few are aquatic Study of Bryophytes- Bryology ( Bryon - Moss, Phyton - Plant) 960 Genera and 24,000 species Bryophytes are less than 2 cm long Dawsonia superba - 60 cm Source: www.allword.com: Information of Riccia jayparmar372000.blogspot.com Source: Polytrichum - Alchetron , The Free ... alchetron.com Source: Anthoceros : The Hornworts : Plantlet plantlet.org Source:Dawsonia superba – Biota bio113.weebly.com Riccia Polytrichum Anthocerous Dawsonia superba

4. Bryophytes- general characteristics Found in warm and moist areas Also found in dry deserts and dry rocks Source:Syntrichia caninervis - Wikispeciesspecies.wikimedia.org Source: Bryophytes in arid areas - bryophyteanbg.gov.au Bryophytes in arid areas Syntrichia caninervis

5. Bryophytes evolved from ancient group of algae Bryophytes developed features to prevent drying out, to adapt land Bryophytes- general characteristics Source: Reproduction in Porella (With Diagram) biologydiscussion.com , Palaeos Plants: Bryophyta : Bryophyta-2 palaeos.com Source: A textbook of botany for colleges and ...alamy.com Antheridium Archegonium Sporangium Calyptra Sterile jacket Venter

6. Bryophytes the amphibians of plant kingdom (Live both in soil and depend water for Sex. Reproduction) Biflagellate sperm swim through water to reach egg. Source: Lab 10 The Bryophytes shkola.of.by Bryophytes- general characteristics Sperm Egg

7. The plant body is thallus like and prostrate or erect Bryophytes are attached t o substratum by Rhizoid (Root like ) They lack true xylem and phloem They may b e Root like, Leaf like and stem like Riccia Dawsonia superba Bryophytes- general characteristics Rhizoid Source:Digestion - All About BryophytaBy : izzy ... allaboutbryophyta.weebly.com

8. Plant body is called Gametophyte Sporophyte is attached and dependent on the Gametophyte Gametophyte is dominant , Sporophyte is short lived. Source: Bryophyte Reproductive Cycle www1.biologie.uni-hamburg.de, moss gametophyte and sporophyte ... researchgate.net Bryophytes- General characteristics

9. Based on thallus morphology Bryophytes- General characteristics Liverworts Hornworts Mosses Riccia Anthocerous Polytrichum

10. Class: Hepaticopsida Bryophytes- Liverworts Source: Difference Between Liverworts and ... differencebetween.com, Bryo.cs Marchantia Riccia Thallus like ( Dorsiventral Flat) Source: lophocolea sp. www.verspreidingsatlas.nl Lophocolea sp. Source: lophocolea sp : Microview Home Page

11. Based on Asexual Reproduction Bryophytes- Reproduction Fragmentation Gemmae Riccia Marchantia Source: Marchantia polymorpha . Common liverwort ...nature-microscope-photo-video.com

12. Life cycle of Marchatia Source: Pinterest

13. Bryophytes- hornworts Class- Anthocerotopsida Anthocerous Thallus resemble that of liverwort (Horned Liverworts) Sporophytes Nostoc sp are present in the cavity Source: Biology Discussion Source: Anthoceros sp. hiddenforest.co.nz

14. Sexual Reproduction Source: Lumen Learning

15. Class- Mucopsida Source Large image for Funaria hygrometrica ... plants.usda.gov, Sphagnum moss | The Wildlife Trusts wildlifetrusts.org Bryophytes- Mosses Polytrichum Funaria S phagnum

16. Gametophyte (Main plant body ) Source: Lumen Learning Bryophytes- Mosses Protonema stage Spore Secondary Protonema Leafy stage

17. Leafy stage bears the sex organs Bryophytes- Mosses Source: Embibe

18. Based on Asexual Reproduction Bryophytes- Mosses Reproduction Fragmentation Budding in the secondary protonema Polytrichum Polytrichum Source Common Haircap Moss Polytrichum Commune ... shutterstock.com

19. Bryophytes- Mosses Sexual Reproduction Source: Britannica Kids

20. Source: The Hidden Forest Bryophytes- Mosses Reproduction Peristome Calyptra drop off Operculum (lid )shed Peristome teeth bend outwards to release spores At last spores are dispersed

21. Some mosses provide food for herbaceous mammals, bird and animals Sphagnum is the main component of peat Sphagnum have the capacity to hold water Mosses along the lichens to colonize rocks Mosses form dense mats on soil and reduce the impact of falling rain and prevent soil erosion Economic importance of Bryophytes

22. Thank you