Botryococcaceae

Botryococcaceae
Botryococcus braunii
Scientific classification
Clade:	Viridiplantae
Division:	Chlorophyta
Class:	Trebouxiophyceae
Order:	Trebouxiales
Family:	Botryococcaceae Wille, 1909[1]
Genera
Botryococcus Caulodendron Dichotomococcus Selenodictyon

Botryococcaceae is a family of green algae in the class Trebouxiophyceae.[2]

Traditionally, Botryococcaceae has been defined on morphological grounds. Members of this family consist of irregular colonies of cells found free-floating or attached to a substrate. Cells are united by mucilaginous stalks that are formed by the gelatinization of the old parent cell walls. Cells may be spherical, ellipsoidal, or ovoid with a chloroplast with or without a pyrenoid. Reproduction occurs exclusively asexually by the formation of autospores.[3] However, molecular phylogenetic studies have found that some genera placed in Botryococcaceae based on morphology alone are unrelated to Botryococcus; the genus Dictyosphaerium is now placed in the family Chlorellaceae.[4]

References

1. Guiry, M.D.; Guiry, G.M. "Botryococcaceae". AlgaeBase. University of Galway. Retrieved 2024-12-19.
2. See the NCBI webpage on Botryococcaceae. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
3. Fanés Treviño, Ingrid; Sánchez Castillo, Pedro; Comas González, Augusto (2009). "Contribution to the taxonomic study of the family Botryococcaceae (Trebouxiophyceae, Chlorophyta) in southern Spain" (PDF). Cryptogamie, Algologie. 30: 17–30. Retrieved 12 September 2023.
4. Bock, Christina; Pröschold, Thomas; Krienitz, Lothar (2010). "Two new Dictyosphaerium-morphotype lineages of the Chlorellaceae (Trebouxiophyceae): Heynigia gen. nov. and Hindakia gen. nov". European Journal of Phycology. 45 (3): 267–277. Bibcode:2010EJPhy..45..267B. doi:10.1080/09670262.2010.487920.