Bryophytes

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It's a brief and concise report on bryophytes.

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Bryophytes

  1. 1. BRYOPHYTES
  2. 2. BRYOPHYTES Oldest land plants on earth and have been around for 400 million years or more They do not have true vascular tissue and are therefore non-vascular plants Do not have roots, but have rhizoids, which are relatively simple, sometimes multicellular filaments of thin-walled cells that extend from the photosynthetic tissue into the soil
  3. 3. BRYOPHYTES Composed of haploid cells, containing only one set of chromosomes Have a two-stage life cycle: gametophyte and sporophyte There are about 2,000 species of bryophytes Divided into three: moss, liverworts, and hornworts
  4. 4. MOSSESBryophyta
  5. 5. MOSSES Small, soft plants that are usually 1-10 cm tall Typically grow close together in moist or shady areas Some mosses are found on rocks and in arid locations Flowerless and seedless
  6. 6. LIVERWORTSHepaticophyta
  7. 7. LIVERWORTS Flowerless, spore-producing plant – with the spores producing in small capsules Typically small; ranging from 2-20 mm wide with individual plants less than 10 cm long Certain species may cover large patches of ground, rocks, trees, or any other reasonably firm substance on which they occur
  8. 8. LIVERWORTS The most familiar liverworts consist of a prostrate, flattened, ribbon-like or branching structure called a thallus (plant body); these liverworts are termed thallose liverworts. However, most liverworts produce flattened stems with overlapping scales or leaves in two or more ranks, the middle rank is often conspicuously different from the outer ranks; these are called leafy liverworts or scale liverworts.
  9. 9. LIVERWORTS  Thallose liverwort, Lunularia cruciata
  10. 10. LIVERWORTS  Leafy liverwort, Plagiochilla asplenioide s
  11. 11. LIVERWORTS Inancient times, it was believed that it could cure diseases of the liver Reduces erosion along streambanks
  12. 12. HORNWORTSAnthocerophyta
  13. 13. HORNWORTS a flowerless, spore-producing plant - with the spores typically produced in a tapering, horn-like or needle-like capsule which develops from a flattish, green sheet Only 100 species identifies

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