The Chromista were originally part of the Kingdom of Protista, but in 1981, some biologist began to consider these organism as a separate kingdom and since 1993 the Kingdom of Chromista has been accepted by most biologists.
This group of organisms include all algae whose chloroplasts contain chlorophylls a and c, as well as various colorless forms that are closely related to them. Photosynthesis takes place in the chloroplasts.
The difference that distinguishes chromists from plants is the location of where the chloroplasts are found. However, trying to understand the explanation of how the difference is determined is more than I can understand at this time.
(m3ch-chromista) Brown Algae
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Included in this kingdom is brown algae, commonly known as seaweed. These organisms have many plant like structures such as roots, stalks, and blades (leaves). It also has gas filled sacs called bladders which allow the algae to float.
Brown algae flourishes in cool, rocky water and can grow to over three hundred feet long. (100 meters)
