Charales

From Academic Kids

Stoneworts
Scientific classification
Kingdom:Plantae
Division:Charophyta
Class:Charophyceae
Order:Charales
Family:Characeae
Genera

Chara
Lamprothamnium
Nitella
Tolypella

The Charales are an order of green algae, and are believed to be the closest relatives of the embryophyte plants. They are branched, multicellular green algae that grow in fresh water. They are often called stoneworts, because the plants can become encrusted in lime (calcium carbonate) after some time. They are unique in having a whorl of small branchlets at each node in the stipe. Its antheridia and oogonia are protected by a layer of sterile cells when mature, and have the most complex structure of all green algae.

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