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Hornwort

Hornwort. 404. Biology I a guilar.chua.cortez . Bryophytes. <- Moss Liverwort ->. Also known as Non-Vascular plants T errestrial with some aquatic forms Very small Photosynthetic Lack specialized cells for the transport of materials. Structure of Hornwort.

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Hornwort

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  1. Hornwort 404 Biology I aguilar.chua.cortez.

  2. Bryophytes <- Moss Liverwort -> Also known as Non-Vascular plants Terrestrial with some aquatic forms Very small Photosynthetic Lack specialized cells for the transport of materials

  3. Structure of Hornwort Spaces between cells filled with mucilage – Distinguishing characteristic. Single, large chloroplast – Photosynthesis (chl a, b, carotenoids, xanthophylls). Rhizoids – Hairlike structure; for anchorage. Stomata – Exchange gases between plant and air.

  4. Habitat Damp and humid places. Rocky environment. Forests, fields, ponds, streams and riverbanks. Tree trunks.

  5. Reproduction • Asexual or vegetative. • Sexual. • Male – Antheridium; Female – Archegonium • Both are embedded in the thallus. • Antherida breaks down. • Sperm are chemically attracted to eggs. • Zygotes are scattered over the plant. • Grow into the next generation of sporophytes. • As they mature, they split into two halves lengthwise and release spores. • Hornwort germinates directly from the spores. • Produce a flat thalloid plant with greasy blue-green color, which is the next generation of gametophyte.

  6. Ecology Aquarium plants (filter; absorbs chemicals). Nitrogen fixation. Astringent.

  7. Examples of species <- Anthocerosformosae Ceratophyllum demersum -> <- Phaeoceroscarolinianus Megacerosflagellaris->

  8. Sources http://www.peoi.org/Courses/Coursesen/bot/temp/bot16t75.html http://creationwiki.org/Hornwort http://en.wikipedia.org/wiki/Hornwort http://www.youtube.com/watch?v=_iXoeUEYy3E http://images.google.com http://images.yahoo.com http://lifeofplant.blogspot.com/2011/03/hornworts.html http://hiddenforest.co.nz/bryophytes/hornworts/intro.htm http://science.jrank.org/pages/1049/Bryophyte-Hornworts-division-Anthocerophyta.html http://www.ehow.co.uk/info_8715509_benefits-hornwort-aquarium.html http://bryophytes.plant.siu.edu/index.html

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