163,859 species and infraspecific names are in the database, 22,783 images, 63,093 bibliographic items, 481,370 distributional records.

Tetrasporopsis fuscescens (A.Braun ex Kützing) Lemmermann 1899

Publication details
Tetrasporopsis fuscescens (A.Braun ex Kützing) Lemmermann 1899: 103

Published in: Lemmermann, E. (1899). Das Phytoplankton sächsischer Teiche. Forschungsberichte aus der Biologischen Station zu Plön 7: 96-135, pls I, II.
 Download PDF

Type species
This is the type species (holotype) of the genus Tetrasporopsis.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Tetraspora fuscescens A.Braun ex Kützing

Type information
Lectotype locality: Dreisam near Freiburg, county of Baden, Germany (Entwisle & Andersen 1990: 264, 266). Lectotype: A. Braun ; November 1846; oxbow lake. L (Kützing Herbarium) 0502-1 (Entwisle & Andersen 1990: 264, 266, fig. 12). Notes: In lacunis Badensibus invenit A. Braun 1847 No 4 (INA). See Graf (2020: [5]) for a DNA anaysis of a fragment of the letotype

Homotypic Synonym(s)
Tetraspora fuscescens A.Braun ex Kützing 1849
Phaeocystis fuscescens (A.Braun ex Kützing) De Toni 1895

Nomenclatural notes
Name also introduced in Schmidle (1902: 159). - (23 Aug 2016) - M.D. Guiry

Habitat notes
On willow roots and wood in streams (Entwisle & Andersen (1990). - (17 Feb 2012) - Wendy Guiry

General environment
This is a freshwater species.

Description
Cells gold–colored, spherical, with a distinct wall, assembled in the periphery of macroscopical gelatinous colonies, which start as tubular or sac–like structures, but later become membranous. Cells with 1–2 parietal chloroplasts, without a stigma or pyrenoid, and reproduction occurs by longitudinal cell division.

Key characteristics
Cells in the colonies also divide by what appears to be smaller autospores with remnant cell walls remaining, the colonial mucilage consists of cylindrical dichotomously branched tubes radiating from the center of the colony to which attach the peripheral cells, and older cells become filled with large oil droplets.

Detailed distribution with sources (Click to Load)

Key references
Bailey, J.C., Bidigare, R.R., Christensen, S.J. & Andersen, R.A. (1998). Phaeothamniophyceae classis nova: a new lineage of chromophytes based upon photosynthetic pigments, rbcL sequence analysis and ultrastructure. Protist 149(3): 245-263.

Bourrelly, P. (1957). Recherches sur les Chrysophycées. Morphologie, phylogénie, systématique. Revue Algologique: Mémoire Hors-Série 1: [1]-412.

Entwisle, T.J. & Andersen, R.A. (1990). A re-examination of Tetrasporopsis (Chrysophyceae) and the description of Dermatochrysis gen. nov. (Chrysophyceae): a monostromatic alga lacking cell walls. Phycologia 29: 263-274.

Kristiansen, J. & Preisig, H.R. (2001). Encyclopedia of Chrysophyte genera. Bibliotheca Phycologica 110: 1-260.

Schmidle, W. (1902). Notizen zu einigen Süsswasseralgen. Hedwigia 41: 150-163.

Stancheva, R., Škaloud, P., Pusztai, M., Loflen, C.L. & Sheath, R.G. (2019). First record of the rare freshwater alga Tetrasporopsis fuscescens (Chrysomerophyceae, Ochrophyta) in North America. Fottea, Olomouc 19(2): 163-174.

Created: 11 April 2002 by M.D. Guiry

Verified by: 18 December 2020 by M.D. Guiry

Accesses: This record has been accessed by users 607 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Stancheva, R., Škaloud, P., Pusztai, M., Loflen, C.L. & Sheath, R.G. (2019). First record of the rare freshwater alga Tetrasporopsis fuscescens (Chrysomerophyceae, Ochrophyta) in North America. Fottea, Olomouc 19(2): 163-174.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=32259

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 October 2021.

SITE © 1996 - 2021 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio