Category: Chlorophyta

Belongs within: Bryopsidales. Codium is a cosmopolitan genus of marine algae with spongy thalli (Norris 2010). The species C. fragile has become a significant invasive in the North Atlantic. Characters (Norris 2010): Algae spongy, non-calcareous macrothalli of definite shapes, either prostrate or repent globose or pulvinate forms, or erect branching cylindrical, compressed, or complanate forms. Internally, thalli… Continue reading Codium

Belongs within: Ulvophyceae. The Cladophoraceae are filamentous green algae with multinucleate cells. Exemplars include both marine and freshwater species (Norris 2010). Characters (Norris 2010): Algae filamentous, uniseriate, branched or unbranched, varying in color from light to dark green. Cells multinucleate, with parietal chloroplasts containing few to many pyrenoids. Asexual reproduction often by fragmentation. Sexual reproduction,… Continue reading Cladophoraceae

Belongs within: Ulvophyceae.Contains: Udoteaceae, Caulerpa, Codium. The Bryopsidales are a primarily marine group of coenocytic green algae. The Bryopsidineae are homoplastic and lack a concentric lamellar system, whereas the Halimedineae are heteroplastic and have a concentric lamellar system (Norris 2010). Characters (Norris 2010): Algae variable in shape and size, ranging from simple (unbranched) to branched… Continue reading Bryopsidales

Belongs within: Diaphoretickes.Contains: Pedinophyceae, Chlorodendrophyceae, Tetraphytae, Mamiellophyceae, Pyramimonas. The Chlorophyta are a major group of green algae including both unicellular and multicellular lineages, with most representatives being aquatic. Plastid thylakoids may be single or stacked, and glycolate dehydrogenase is present. Cell division does not involve a phragmoplast (Adl et al. 2019). Basal lineages include the… Continue reading Chlorophyta

Belongs within: Tetraphytae.Contains: Chlamydomonadaceae, Haematococcus. The Volvocales are a group of solitary or colonial, biflagellate, unicellular green algae. The classification of its members is currently in flux; many historical subgroups are now recognised as artificial. The Dunaliellina include solitary cells lacking a rigid cell wall (though a distinct surface coat is present) or contractile vacuoles (Melkonian &… Continue reading Volvocales

Belongs within: Chlorophyta.Contains: Chaetophoraceae, Chlorellales, Ulvophyceae, Chlorococcales, Volvocales, Oedogoniophyceae, Tetrasporales. The Tetraphytae are a clade of green algae in which cytokinesis involves a phycoplast, a system of microtubules that is oriented parallel to the plane of cell division. Members of the clade include both unicellular and multicellular forms. Characters (Cavalier-Smith 1998): Cruciate microtubular roots without… Continue reading Tetraphytae

Belongs within: Ulvophyceae. The Ulotrichales are a group of aquatic green algae with a life cycle alternating between multicellular gametophytes and unicellular sporophytes. Gametes are biflagellate whereas zoospores are quadriflagellate. Subgroups include the Monostromataceae which have blade-like thalli comprised of a single layer of cells (Abbott & Hollenberg 1976). Ulotrichales [Codiolophyceae] | i. s.: VermiporellaceaeVH01… Continue reading Ulotrichales

Belongs within: Tetraphytae.Contains: Anthracoporella, Luliporeae. The Dasycladales are a group of macroscopic but unicellular green algae, many species of which develop a calcareous skeleton. Thalli are radially symmetrical with whorls of simple or divided laterals branching from a central axis or stalk (Norris 2010). A number of fossil taxa have been assigned to this order.… Continue reading Dasycladales

Belongs within: Trebouxiophyceae. The Chlorosarcinaceae are unicellular green algae exhibiting vegetative cell division (desmoschisis) as well as zoosporogenesis (Archibald 1990). <==Chlorosarcinaceae [Chlorosarcinales]A90 |–AxilosphaeraA90 |–BorodinellaA90 |–BorodinellopsisA90 |–BotryokoryneA90 |–ChlorosarcinaA90 |–ChlorosarcinopsisA90 |–ChlorosphaeropsisA90 |–FasciculochlorisA90 |–FernandinellaA90 |–Friedmannia israelensisA90, MS95 |–HeterotetracystisA90 |–PlanophilaA90 |–PseudotetracystisA90 |–PseudotrebouxiaA90 |–SpongiococcumA90 `–TetracystisA90 *Type species of generic name indicated References [A90] Archibald, P. A. 1990. Soil algae. In:… Continue reading Chlorosarcinaceae

Belongs within: Chlorococcales. The Chlorococcaceae are a family of unicellular or coenocytic green algae. Chlorococcaceae |–Chlorococcum humicoloA90, SG05 |–Bracteacoccus grandis Bischoff & Bold 1963A90, GPN97 |–DictyochlorisA90 |–DictyococcusA90 |–KentrosphaeraA90 |–NautococcusA90 |–NeospongiococcumA90 |–PlanktosphaeriaA90 |–PulchrasphaeraA90 |–SpongiochlorisA90 |–Glenobotrydion Schof 1968KS92 | |–*G. aenigmatis Schopf 1968KS92 | `–G. majorinum Schopf & Blacic 1971KS92 |–Globophycus Schopf 1968KS92 | |–*G. rugosum Schopf… Continue reading Chlorococcaceae