Stigeoclonium Kützing
	From Latin stigeus, "tattooer" + Greek klonion, "small twig"
	Stigeoclonium has uniseriate filaments with multicellular branches that become tapered and hair-like. The genus is similar to Chaetophora in morphology, habitat, and reproduction, but has a thinner layer of mucilage surrounding the filaments. Portions of Stigeoclonium filaments are prostrate and attached to the substrate, while the branches are more upright. The prostrate filaments are more secure from predation and disturbance and can easily regenerate the more fragile upright portions. The cells are cylindrical or rounded with thin or thick walls. The plate-like, parietal chloroplasts each contain at least one pyrenoid.   The morphology of Stigeoclonium is highly variable. Some researchers believe that most of the 30 recognized species are in fact just different forms of the same species with morphological variations created by environmental changes.