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• Identification of algae »
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• Cell contents (chloroplasts when present) are green or blue-green »
• Cells contain membrane-bound organelles (chloroplasts, nuclei etc) and cell contents are grass green

Cells contain membrane-bound organelles (chloroplasts, nuclei etc) and cell contents are grass green

4. Please select from colony/cells type.

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  Approximately spherical cells embedded in a mass of jelly, lacking whip-like flagella, and not connected by threads
• 
  Colony is a tight mass of cells with long spines radiating outward
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  Cells are curved, associated in loose colonies
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  Cells embedded in a mass of spherical jelly, with whip-like flagella pointing outwards
• 
  Cells connected by branching threads of jelly or old wall material
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  Colony comprised of cells in flat sheets or skeins; cells lack contrictions
• 
  Colonies have regular structure, not haphazardly arranged; colonies of cells often in multiples of 2 or 4; whip-like flagella absent
• 
  Cells long and thin, with tapering ends