Charophyta
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| Charophyta | ||||||||
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Mesostigmatophyceae |
The Charophyta are a division of green algae, including the closest relatives of the embryophyte plants. Because they exclude the embryophytes, they make a paraphyletic group (though they are occasionally restricted to simply the Charales or stoneworts, which are monophyletic). In some groups, such as conjugating green algae, flagellate cells do not occur. The latter group does engage in sexual reproduction, and motility does not involve flagella, since they are totally lacking. Flagellate cells in the form of sperm are found in stoneworts (Charales) and Coleochaetales.
[edit] References
Lewis, Louise A.; Richard M. McCourt (2004). "Green algae and the origin of land plants". American Journal of Botany 91 (10): 1535-1556.
[edit] See also
Early land floræ | ||
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| Related links | Evolutionary history of plants • External link directory | Image:Cooksonia.png |
| The first...? | Vascular plant, Cooksonia • Tree, Archaeopteris • Lycopods, the Drepanophycales and the Zosterophylls • Fungus fossil, Ornatifilum | |
| Enigmatic taxa | Cuticular remains: Cosmochlaina, Nematothallus • A giant fungus? — Prototaxites | |
| Sister taxa | Green algae: Charophyta, from which land plants evolved • Chaetocladus, an early alga | |
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