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Cards In This Set
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Gleocapsa
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 ~cyanobacteria ~unicellular ~not filamentous, several spherical cells are embedded in gelatinous matrix |
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Anabaena
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 ~cyanobacteria ~long strands of cells side by side ~heterocysts (capable of reducing atmospheric nitrogen) ~akinetes (highly resistant cells which help the filament survive when the pond dries up) ~commonly found growing in pollued lakes and ponds ~bloom significantly reduces the amount of oxygen available leads to he dramatic fish kills |
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Gleotrichia
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 ~heterocysts at the end of filament ~clog up water filters on pumps or wells |
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Oscillatoria
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 ~gliding movement of the filaments (motile) ~found commonly in polluted lakes and ponds especially with nitrates and phosphates from fertilizers |
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Nostoc
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 ~spherical colonies ~resemble anabaena but filaments are usually packed into a "ball" |
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Coccus
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Spherical shaped
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Bacillus
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Rod shaped
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Spirillum
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Spirals
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Heterocyst
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Specialized cells capable or reducing atmospheric nitrogen
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Akinetes
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Highly resistent cells which help the filament survive when the pond dries up
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Phylum hepathophyta
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~liverworts
~reproduce asexually by the production of gemmae |
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Gemmae
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~small plantlets produced by mitotic division of cells at he base of a gemma cups
~look like oval green eggs in a nest |
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Phylum psilophyta
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~whisk fern
~stem branched dichotomously (y-shaped) ~there are no leaves or roots ~sporangia near the tips of some branches ~meiospores are produced via osmosis within spherical sporangia ~homosporous |
