Phylogeny of Plantae

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Transcript Phylogeny of Plantae

Kingdom Plantae
MR.G.Burgess
2004
Characteristics common to all plants
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Cell walls(cellulose)
Eukaryotic
Autotrophic; photosynthetic (chloroplasts)
sessile
Multicellular
Asexual and sexual reproduction
Plantae are classified by;
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2.
3.
Tissue structure: vascular or non-vascular
Seed structure: ‘naked seeds’. Covered seeds,
spores
Stature: mosses, ferns, shrubs and vines, trees,
and herbs.
Nonvascular plants
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Absorb water through their outer tissues.
Example; Bryophytes (mosses)
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Depend on the surrounding area to provide
the moisture required.
Reproduce with spores
Small in stature
Vascular plants
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Absorb water through tubes; leaf veins, roots
Example: ferns, dandelions, trees
Division Pteridophyta
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ferns
have a system of tubes from the roots to the leaves
that transport water and nutrients through the plant.
Reproduction is through spores
Their vascular tubes allow them to grow taller than
the bryophytes.
Seed Plants
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Division Gymnospermata
Reproduce sexually forming naked seeds
Examples, pine, spruce, fir
Vascular
Forms needles for leaves
Seed Plants
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Division Angeospermata
Reproduce sexually forming covered seeds
Flower forming
Examples: clover, grasses, oak tree, rose
Questions
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Pp. 375 #1-6
Pp. 399 #4-6
Pp. 507 #1-5
Text: Biology 11, Nelson, 2002.
Bibliography
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Families Classification of plants and animals, http://sln.fi.edu/tfi/units/ life/ classify/classify.html, accessed April 14,
2004
The Seed Site, http://theseedsite.co.uk/index.html, accessed April 14, 2004.