Chloroplastida (syn. Viridiplantae) (Green Plants)
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Mesostigmatophyceae (syn. Chaetosphaeridiophyta)
The green algae (singular: green alga ) are the large group of algae from which the embryophytes (higher plants) emerged. [ 1 ] As such, they form a paraphyletic group, although the group including both green algae and embryophytes is monophyletic (and often just known as kingdom Plantae ). The green algae include unicellular and colonial flagellates , most with two flagella per cell, as well as various colonial, coccoid and filamentous forms, and macroscopic seaweeds .
Plants , also called green plants ( Viridiplantae in Latin ), are living organisms of the kingdom Plantae including such multicellular groups as flowering plants , conifers , ferns and mosses , as well as, depending on definition, the green algae , but not red or brown seaweeds like kelp , nor fungi or bacteria . Green plants have cell walls with cellulose and characteristically obtain most of their energy from sunlight via photosynthesis using chlorophyll contained in chloroplasts , which gives them their green color. Some plants are parasitic and may not produce normal amounts of chlorophyll or photosynthesize.
Die Chloroplastida  oder Viridiplantae sind eine Gruppe von photosynthetisch aktiven Eukaryoten , also Lebewesen mit Zellkernen . Zu ihnen gehören die Grünalgen und die Pflanzen .
Viridiplantae (literally "green plants") [ 1 ] [ 2 ] [ 3 ] are a clade comprising the green algae and land plants . [ 4 ] [ 5 ] In some classification systems they have been treated as a kingdom , [ 6 ] under various names, e.g. Viridiplantae , Chlorobionta , or simply Plantae , the latter expanding the traditional Plant Kingdom to include the green algae .