152,876 species and infraspecific names are in the database, 20,939 images, 59,121 bibliographic items, 408,269 distributional records.

Micrasterias thomasiana W.Archer

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Streptophyta infrakingdom
Phylum Charophyta
Class Conjugatophyceae (Zygnematophyceae)
Order Desmidiales
Family Desmidiaceae
Genus Micrasterias

Pictures

click on thumbnail for larger version.

Micrasterias thomasiana W.Archer
Uist, Scotland. Showing prominent inflations in side and apical views, hence distinguish from var. notata.. 29 Jun 2016. © C.F. Carter (chris.carter'at'6cvw.freeuk.com.

Micrasterias thomasiana W.Archer
North Cascades, Washington, USA; Picture Lake, 200x, DIC. 30 Aug 2012. Karl Bruun. © Karl Bruun.

Micrasterias thomasiana W.Archer
North Cascades, Washington, USA; Picture Lake, 200x, DIC. 30 Aug 2012. Karl Bruun. © Karl Bruun.

Micrasterias thomasiana W.Archer
North Cascades, Washington, USA; Highwood Lake, 200x, DIC. 22 Aug 2012. Karl Bruun. © Karl Bruun.

Micrasterias thomasiana W.Archer
Pool by River South Esk, Angus, August 2009. 21 Aug 2009. © C.F.Carter (Chris.Carter@6cvw.freeuk.com).

Micrasterias thomasiana W.Archer
Image stacked to show inflations. Pool by River South Esk, Angus, Scotland.. 21 Aug 2009. © C.F.Carter (Chris.Carter@6cvw.freeuk.com).

Micrasterias thomasiana W.Archer
Pool by River South Esk, Angus, Scotland.. 21 Aug 2009. © C.F.Carter (Chris.Carter@6cvw.freeuk.com).

Micrasterias thomasiana W.Archer
Apical views showing inflations. Pool by River South Esk, Angus, Scotland.. 21 Aug 2009. © C.F.Carter (Chris.Carter@6cvw.freeuk.com).

Micrasterias thomasiana W.Archer
Lough Aneurin, Connemara, Co. Galway, Ireland. 20 Nov 2005. David John. © David John (d_m_john@ntlworld.com).

Micrasterias thomasiana W.Archer
Connemara, Co. Galway, Ireland, November 2005. In bog pool. David John. © David John (d_m_john@ntlworld.com).

 

Phacus pyrum var. ovatus Playfair

Micrasterias thomasiana W.Archer Uist, Scotland. Showing prominent inflations in side and apical views, hence distinguish from var. notata.
© C.F. Carter (chris.carter'at'6cvw.freeuk.com

Publication details
Micrasterias thomasiana W.Archer 1862: 239, pl. XII [12]: figs 1-10 (as 'Thomasiana' )

Published in: Archer, W. (1862). Description of a new species of Micrasterias (Ag. et Aliorum, non Ehr.), with remarks on the distinctions between Micrasterias rotata (Ralfs) and M. denticulata (Bréb.). Quarterly Journal of Microscopical Science, new series 2: 236-247.
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Type species
The type species (lectotype) of the genus Micrasterias is Micrasterias furcata C.Agardh ex Ralfs.

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

Eponomy
Named for "Mrs. Herbert Thomas, whose paper on " Cosmarium," has, doubtless, been perused [sic] with much interest by every student of the Desmids, and I am happy at having the opportunity of thus evincing my own humble appreciation of her researches."

Heterotypic Synonym(s)
Micrasterias denticulata f. cornuta M.I.Claassen
Micrasterias denticulata var. subnotata West 1892

General environment
This is a freshwater species.

Type information
Type locality: "A llarge pool near the "Old Gable", Featherbed Mountain [The Featherbeds, Dublin Mountains, Co. Dublin, Ireland], and sparingly elsewhere in the vicinity." (Archer 1862: 240).

Detailed distribution with sources (Click to Load)

Key references
Brook, A.J., Williamson, D.B. & John, D.M. (2011). Phylum Chlorophyta. Suborder Desmidiineae. In: The freshwater algal flora of the British Isles. An identification guide to freshwater and terrestrial algae. Second edition. (John, D.M., Whitton, B.A. & Brook, A.J. Eds), pp. 636-741. Cambridge: Cambridge University Press.

Coesel, P.F.M. & Meesters, K.[J.] (2007). Desmids of the Lowlands Mesotaeniaceae and Desmidaceae of the European Lowlands. pp. [1]-351, 20 text-figs, 123 pls. Zeist: KNNV Publishing.

Day, S.A., Wickham, R.P., Entwisle, T.J. & Tyler, P.A. (1995). Bibliographic check-list of non-marine algae in Australia. Flora of Australia Supplementary Series 4: i-vii, 1-276.

Förster, K. (1982). Conjugatophyceae Zygnematales und Desmidiales (excl. Zygnemataceae). In: Das Phytoplankton des Süßwassers Systematik und Biologie [Band] 8. Teil 1. Hälfte. pp. [i]-viii, [1]-543. Stuttgart: E. Schweizerbart'sche Verlangbuchhandlung (Nägele u. Obermiller). [in On shelf with series]

Hirose, H., Yamagishi, T. & Akiyama, M. (1977). Illustrations of the Japanese fresh-water algae. pp. [8 col. pls], [1]-933, 244 pls in text. Tokyo: Uchida Rokakuho Publishing Co., Ltd. [in Japanese]

Hu, H. & Wei, Y. (2006). The freshwater algae of China. Systematics, taxonomy and ecology. pp. [4 pls of 16 figs], [i-iv], i-xv, 1-1023. China: www.sciencep.com.

Mann, D.G., Bayer, M.M., Droop, S.J.M., Hicks, Y.A. (J.), Marshall, A.D., Martin, R.R. & Rosin, P.L. (2007). New methods for preparing, imaging and typifying desmids (Chlorophyta, Zygnematophyceae), including extended depth of focus and 3-D reconstruction.. Phycologia 46: 29-45.

Petlovany, O.A. & Tsarenko, P.M. (2015 '2014'). Desmidiales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 4: Charophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 61-448. Ruggell: Koeltz Scientific Books.

Ruzicka, J. (1981). Die Desmidiaceen Mitteleuropas. Vol. 1(2) pp. [i]-ix, 293-736, pls 45-117. Stuttgart: E. Schweizerbart'sche Verlagsbuchhandlung.

Wei Yinxin [Wei, Y.X.] (2003). Flora algarum sinicarum aquae dulcis, Tomus VII. Chlorophyta Zygnematales Mesotaeniaceae Demidiales Desmidiaceae Sectio I. pp. 1-267, pls I-LII [1-52]. Beijing: Science Press. [in Chinese]

West, W. & West, G.S. (1905). A monograph of the British Desmidiaceae. II. pp. [i]-x, [1]-206, pls 33-64. London: The Ray Society.

Culture Centre for Algae and Protozoa (CCAP) cultures
Strain Number 649/21 Micrasterias thomasiana W.Archer Thomasiana
Go to CCAP Site

Created: 11 April 2002 by M.D. Guiry

Verified by: 11 September 2018 by M.D. Guiry

Accesses: This record has been accessed by users 3795 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.)

Blackburn, S.I. & Tyler, P.A. (1981). Sexual reproduction in desmids with special reference to Micrasterias thomasiana var. notata (Nordst.) Grönblad. British Phycological Journal 16: 217-229, 32 figs.
Blackburn, S.I. & Tyler, P.A. (1987). On the nature of ecletic species - a tiered approach to genetic compatibility in the desmid Micrasterias thomasiana. British Phycological Journal 22: 277-298.
Lehtonen, J. (1977). Morphogenesis in Micrasterias torreyi Bail. and M. thomasiana Arch. studied with UV microbeam irradiation and chemicals. Ann. Bot. Fen. 14: 165-190.
Meindl, U. (1984). Helical structures in the cytoplasm of differentiating cells of Micrasterias thomasiana. Protoplasma 123: 230-232.
Meindl, U. (1985). Experimental and ultrastructural studies on cell shape formation in the defect mutant cell Micrasterias thomasiana f. uniradiata. Protoplasma 129: 74-87.
Nossag, J. & Kasprik, W. (1993). The movement of Micrasterias thomasiana (Desmidiaceae, Zygnematophyceae) in direct blue light. Phycologia 32: 332-337, 5 figs, 2 tables.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 September 2018.

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