Identifying Algae
Algae are a large and diverse group of simple plant-like organisms. Algae lack roots, leaves and other structures of true plants. Generally, algae have no vascular tissue or simple organ differentiation. Algae are of simple construction, ranging from unicellular to multicellular forms, and can look like green paint or stringy green, brown and yellow mats. Algae can range from microscopic up to large kelps.
Plankton Algae Filamentous Algae
Often described as pea soup, plankton algae can't be held in your hand for examination, and may only be identified under a microscope. Phytoplankton are small free floating microscopic algae which drift about in bodies of water. Filamentous algae (FA) may be stringy-like and physically able to be held in your hand for examination. FA can form mats of pond scum floating on the surface, resembling steel wool.
Some algae may be misidentified as submerged "branched" plants. Chara (also know as muskgrass or skunk weed because of its foul, musty odor) is a branched algae often confused with submerged rooted plants. Chara is distinguished by odor and grainy texture. Chara will not extend above the water and has cylindrical, whorled branches with 6 to 16 branchlets around each node.
Chara
Where To Find Algae
