1 / 15

Diversity in the plant kingdom

Diversity in the plant kingdom. © 2008 Paul Billiet ODWS. Bryophyta. Small terrestrial plants restricted to damp habitats Water is needed for fertilisation Spores ensure dispersal. © 2008 Paul Billiet ODWS. www.flwildflowers.com/flwildflowers.html. Bryophyta. Hepaticae the liverworts

iden
Download Presentation

Diversity in the plant kingdom

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Diversity in the plant kingdom © 2008 Paul Billiet ODWS

  2. Bryophyta • Small terrestrial plants restricted to damp habitats • Water is needed for fertilisation • Spores ensure dispersal © 2008 Paul Billiet ODWS

  3. www.flwildflowers.com/flwildflowers.html Bryophyta • Hepaticae the liverworts • Prostrate thallus with rhizoids © 2008 Paul Billiet ODWS

  4. Bryophyta • Musci the mosses • Erect stem with leaflets +/- rhizoids http://www.univ-ubs.fr/ © 2008 Paul Billiet ODWS

  5. Filicinophyta the ferns • Water still needed for fertilisation • Spores ensure dispersal • Vascular plants • Lignified tissue (wood) may be present • Differentiated into: leaves, stem, roots, rhizome © 2008 Paul Billiet ODWS

  6. procosara.org/san_rafael_en,photo,64?PHPSESSI... www.rook.org/earl/bwca/nature/ferns/index.html Filicinophyta

  7. Coniferophyta the conifers • Vascular plants • Seed plants • Seeds contain a food store for an embryo inside protective coat • Seeds ensure dispersal • Naked seeds born in cones http://www.nasa.gov/centers/goddard/news/topstory/2006/forest_changes_prt.htm © 2008 Paul Billiet ODWS

  8. http://www.nearctica.com/trees/conifer/places/eastern.htm Coniferophyta Araucaria sp. (Monkey-puzzle) http://www.britannica.com/ebc/art-21824/Monkey-puzzle-tree

  9. Angiospermophytathe flowering plants • Vascular plants • Seed plants • Seeds protected by an ovary which becomes a fruit • Fruit, a structure that encourages seed dispersal © 2008 Paul Billiet ODWS

  10. Summary © 2008 Paul Billiet ODWS

  11. Dicotyledons & Monocotyledons • Angiosperms are divided into two groups • The basic distinguishing feature are embryonic leaves (coytledons) • Cotyledons are found in the seeds of these plants © 2008 Paul Billiet ODWS

  12. Seed coat or testa Cotyledons acting as a food reserve Plumule (to become the first true leaf) Micropyle Radicle (to become the first root) Dicotyledon seed © 2008 Paul Billiet ODWS

  13. Seed coat Endosperm (food reserve) Cotyledon Plumule Radicle Monocotyledon seed © 2008 Paul Billiet ODWS

  14. Dicots v Monocots – other differences © 2008 Paul Billiet ODWS

  15. Vascular tissue Vascular tissue Cortex Pith Epidermis Dicots v Monocots – other differences © 2008 Paul Billiet ODWS

More Related