Chaetophora F.Schrank, 1783
Lectotype species: Chaetophora lobata Schrank
Original publication:Schrank, F. von P. (1783). Botanische Rhapsodien. Der Naturforscher (Halle) 19: 116-126.
Type designated in Caisová, L., Marin, B., Sausen, N., Proschold, T. & Melkonian, M. (2011). Polyphyly of Chaetophora and Stigeoclonium within the Chaetophorales (Chlorophyceae), revealed by sequence comparisons of nuclear-encoded SSU rRNA genes. Journal of Phycology 47(1): 164-177.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Caisová, L., Marin, B., Sausen, N., Proschold, T. & Melkonian, M. (2011). Polyphyly of Chaetophora and Stigeoclonium within the Chaetophorales (Chlorophyceae), revealed by sequence comparisons of nuclear-encoded SSU rRNA genes. Journal of Phycology 47(1): 164-177.
When Chaetophora was established (Schrank 1783), the genus included only two species, C. globosa and C. lobata, without designation of a type species. However, the first of these names is illegitimate, having resulted from the transfer of Conferva stellaris O.F.Müller to Chaetophora as C. globosa - see Caisová et al. (2011: 172), the unwarranted change of epithet rendering the Schrank name illegitimate. They also note that Hazen (1902) nominated C. globosa as lectotype species of Chaetophora but the method of selecting the first-mentioned species in an original description as lectotype is considered by the ICN as "largely mechanical" and thus unacceptable. As Schrank's (1783) concept of the genus Chaetophora was largely based on his observations on C. lobata, they proposed to redesignate C. lobata as lectotype. - (14 Apr 2011) - Wendy Guiry
Description: Plants globose, tuberculose or arbuscular, mucilaginous or somewhat cartilaginous. Thalli comprised of highly branched, intertwined, uniseriate filaments, each branch tapering to a blunt point or giving rise to a long, multicellular hair. Cells each with parietal chloroplast and one to several pyrenoids. Motile stages produced from peripheral cells, zoospores quadriflagellate and gametes biflagellate and isogamous. Emended diagnosis (Kützing, 1843 fide Liu et al., 2019).
Information contributed by: D.M. John. The most recent alteration to this page was made on 3 Apr 2019 by Wendy Guiry.
Comments: Species grow epiphytically on freshwater aquatic plants and a wide variety of other submerged surfaces. Widely distributed. Requires re-investigation as species distinguished principally on such unreliable criteria as macroscopic thallus form and nature of branching of the constituent filaments. Ultrastructural investigation of C. incrassata shows plasmodesmata, a phycoplast, and membranes appressed to pyrenoids.
Numbers of names and species: There are 32 species names in the database at present, as well as 12 infraspecific names. Of the species names, 8 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..
Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
Click here to also show infraspecific names in the list below.
Caisová, L., Marin, B., Sausen, N., Proschold, T. & Melkonian, M. (2011). Polyphyly of Chaetophora and Stigeoclonium within the Chaetophorales (Chlorophyceae), revealed by sequence comparisons of nuclear-encoded SSU rRNA genes. Journal of Phycology 47(1): 164-177.
Hazen, T.E. (1902). The Ulothricaceae and Chaetophoraceae of the United States. Memoirs of the Torrey Botanical Club 11: 135-250.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.
Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.
Created: 28 December 2000 by M.D. Guiry
Verified by: 14 September 2018 by Wendy Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33113
Please cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 February 2020.