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The plant we recognize as a fern is the diploid sporophyte generation. ... The photo shows the sori on the underside of the leaflets of the Christmas fern. ... Although it is tiny, the haploid fern prothallus is a fully-independent, autotrophic plant...
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users.rcn.com/jkimball.ma.ultranet/BiologyPages/F/Ferns...
users.rcn.com/jkimball.ma.ultranet/BiologyPages/F/Ferns.html
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Kingdom Plantae...
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www.esu.edu/~milewski/intro_biol_two/lab_2_moss_ferns/F...
www.esu.edu/~milewski/intro_biol_two/lab_2_moss_ferns/Fern_life_cycle.html
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FERN (PTERIDOPHYTE) LIFE CYCL ... Click on a section of Pteridophyte Life Cycle for more informatio ... ; Sporophyte is the dominant stage of the Life Cycle...
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fybio.bio.usyd.edu.au/VLE/L1/ResourceCentre/GraphicFile...
fybio.bio.usyd.edu.au/VLE/L1/ResourceCentre/GraphicFiles/FS_LCFern.html
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Reproduction and Life Cycle of Ferns and their Allies ... The prothallus has a single set of chromosomes (i.e. haploid) and is the sexual part of the life cycle. The sexual organs are microscopic or nearly so. The male organs or antheridia produce and shed numerous motile sperm ... Drawing of life cycle of a typical fern...
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www.anbg.gov.au/fern/life_cycle.html
www.anbg.gov.au/fern/life_cycle.html
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This is how the chromosome number in a life cycle changes from diploid (2n) to haploid (n). ... Fern Life Cycle. Ferns belong to the Division Pterophyta characterized by vascular plants with leaves (fronds) arising from subterranean, creeping rhizomes. In tree ferns, the leaves are produced on a definite woody trunk.
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waynesword.palomar.edu/lmexer8.htm
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The fern life cycle is characterized by having two separate free-living plants, gametophytes and sporophytes, interconnected by stages of the sexual process. This phenomenon is referred to as an alternation of phases of a single generation.
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phylogeny.arizona.edu/tree/eukaryotes/green_plants/embr...
phylogeny.arizona.edu/tree/eukaryotes/green_plants/embryophytes/filicopsida/leptosporangiate_ferns.html
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The Life Cycle of a Fern ... Examine the image below and click on the various stages of the life cycle to see the associated images. ... Return to Fern Section...
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www.umanitoba.ca/Biology/lab7/biolab7_3a.html
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This is a fern gametophyte. Notice how small this plant is - barely half a centimeter long. This is the most vulnerable stage in the life cycle of the fern - the gametophytes are prone to dessication, trampling, being eaten, and being out shaded by the surrounding foliage.
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www.uic.edu/classes/bios/bios100/summer2003/fernlifecyc...
www.uic.edu/classes/bios/bios100/summer2003/fernlifecycle.htm
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Starting with the ferns we know -- on the left, bottom -- follow the events of sexual reproduction and you'll find the two fundamental parts of sex -- the chromosome dance ... And here's an actual photo of what is taking place in the bottom right corner of the life cycle illustration. Can you make out the two generations...
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www.lclark.edu/~seavey/bio210/fern_life_cycle_illus.htm...
www.lclark.edu/~seavey/bio210/fern_life_cycle_illus.html
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