Chlorotetraedron MacEntee, Bold & Archibald, 1978
Holotype species: Chlorotetraëdron polymorphum (MacEntee, Bold & P.A.Archibald) MacEntee, Bold & P.A.Archibald
Original publication and holotype designation: MacEntee, F.J., Bold, H.C. & Archibald, P.A. (1978). Correction of the name Pseudotetraëdron polymorphum (Chlorophyceae). Journal of Phycology 14: 234 only.
Request PDFDescription: Cells solitary or in groups, 4-90 &m wide, becoming bright orange in culture. Cells spherical, tetrahedral or saccate, the tetrahedral form occasionally persisting in mature cells or developing into four small processes. Cell walls smooth, up to 10 &m thick in P. polymorphum, with or without 4 or more short to long wall projections. Cells uninucleate when formed, becoming multinucleate, nuclear number corresponding to number of spores produced. Chloroplast single and massive, netlike; pyrenoid single and nonparietal in young cells, becoming multiple with age. Asexual reproduction by uninucleate aplanospores or uninucleate, biflagellate, naked zoospores, 4, 8, 16, 32, 64 (rarely 128) per sporangium; spore number depending on nuclear number and cell size. Zoospores, with two anterior contractile vacuoles and anterior nucleus, released in group in common vesicle. Chlorotetraedron from soil (2 species) or planktonic in eutrophic freshwater; reported from Australia, Europe, Asia, North America in both temperate and tropical conditions.. Species distinguished based on cell size and chloroplast morphology. Genus of uncertain taxonomic position and requires ultrastructural evaluation to clarify relationships.
Information contributed by: D. Garbary. The most recent alteration to this page was made on 2022-05-29 by E.A. Molinari Novoa.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as neuter.
Most recent taxonomic treatment adopted: Komárek, J. & Kovácik, L. (1985). The genus Chlorotetraedron McEntee et al. (Protosiphonales, Chlorophyceae). Preslia 57: 289-297.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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.
Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=44518
Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 29 May 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 April 2024
