''Chaetonemopsis'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

green algae The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ...

in the family

Chaetophoraceae Chaetophoraceae is a family (biology), family of green algae in the order Chaetophorales. Members of the family are variously semi-terrestrial to aquatic in habitat, and consist of branched filaments in two parts, a prostrate system of filaments ...

. ''Chaetonemopsis'' consists of uniseriate filaments which are laterally and alternately branched. Cells have long, basally swollen hairs; terminal cells often have two such hairs. Cells are uninucleate with a

chloroplast A chloroplast () is a type of membrane-bound organelle, organelle known as a plastid that conducts photosynthesis mostly in plant cell, plant and algae, algal cells. Chloroplasts have a high concentration of chlorophyll pigments which captur ...

. Sexual reproduction is

oogamous Oogamy is a form of anisogamy where the gametes differ in both size and form. In oogamy the large female gamete (also known as ovum) is immotile, while the small male gamete (also known as spermatozoon) is mobile. Oogamy is a common form of anis ...

, in which the egg is released from the oogonium but remaining attached via a thin, cytoplasmic thread. The taxonomic status of this genus is unclear. Some taxonomists have suggested that the morphological features of ''Chaetonemopsis'' are actually produced by a different genus '' Bulbochaete'' parasitized by an

amoeba An amoeba (; less commonly spelled ameba or amœba; : amoebas (less commonly, amebas) or amoebae (amebae) ), often called an amoeboid, is a type of Cell (biology), cell or unicellular organism with the ability to alter its shape, primarily by ...

References

Chaetophorales genera Chaetophoraceae {{Chlorophyceae-stub