152,947 species and infraspecific names are in the database, 20,947 images, 59,170 bibliographic items, 408,277 distributional records.

Euastrum ansatum Ehrenberg ex Ralfs

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

Pictures

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Euastrum ansatum Ehrenberg ex Ralfs
Empty cell showing pores and protuberances. Collected by Ingrid Jüttner, Lough Cluain, Galway, Ireland. 12 Feb 2014. © C.F. Carter (chris.carter@6cvw.freeuk.com).

Euastrum ansatum Ehrenberg ex Ralfs
North Cascades, Washington, USA; Highwood Lake, 1000x, DIC. 27 Sep 2012. Karl Bruun. © Karl Bruun.

Euastrum ansatum Ehrenberg ex Ralfs
North Cascades, Washington, USA; Highwood Lake, 400x, DIC. 27 Sep 2012. Karl Bruun. © Karl Bruun.

 

Fosliella valida Adey & P.J.Adey

Euastrum ansatum Ehrenberg ex Ralfs Empty cell showing pores and protuberances. Collected by Ingrid Jüttner, Lough Cluain, Galway, Ireland
© C.F. Carter (chris.carter@6cvw.freeuk.com)

Publication details
Euastrum ansatum Ehrenberg ex Ralfs 1848: 85, pl. XIV [14]: fig. 2a-f

Published in: Ralfs, J. (1848). The British Desmidieae. pp. [i]-xxii, [i], [1]-226, pls I-XXXV. London: Reeve, Benham & Reeve.
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Type species
This is the type species (lectotype) of the genus Euastrum.

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

Heterotypic Synonym(s)
Cosmarium ansatum (Ehrenberg) Corda 1839
Euastrum rotundum Playfair 1907
Euastrum ansatum var. dideltiforme Ducellier 1918
Euastrum ansatum var. commune Ducellier 1918
Cosmarium pseudopyramidatum var. ansatum Krieger & Gerloff 1965
Euastrum ansatum f. dideltiforme (Ducellier) G.H.Tomaszwicz & W.W.Kowalski 1993

General environment
This is a freshwater species.

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.

Ehrenberg, C.G. (1832). Über die Entwickelung und Lebensdauer der Infusionsthiere; nebst ferneren Beiträgen zu einer Vergleichung ihrer organischen Systeme. Abhandlungen der Königlichen Akademie Wissenschaften zu Berlin, Physikalische Klasse 1831: 1-154, pls I-IV.

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.

Kouwets, F.A.C. (1999). A check-list of desmids (Chlorophyta, Zygnemaphyceae) of France. Patrimoines Natureles 41: 1-148.

Martello, G.V (2006). Alcune desmidiee della zona di Caldenave e della Val d'Inferno - Massiccio montuoso dei Lagorai (Trento). Informatore Botanico Italiano 38(2): 513-536.

Martello, G.V. (2004). Le Desmidiée (Chlorophyta, Zygnematophyceae) dei "Sette Laghi"nel massiccio montuoso dei Lagorai: ecologia e distribuzione in relazione all'acidita delle acque. Natura Vicentina 8: 5-32.

Martello, G.V. (2007). Le Desmidiée (Chlorophyta, Zygnematophyceae) di alcune zone umide lentiche della Val di Rava (Gruppo montuoso dei Lagorai) (TN). The Desmids (Chlorophyta, Zygematophyceae) of some lentic freshwater habitats of the Rava Valley (Montainous group of the Lagorai) (TM). Natura Vicentina 11: 77-115.

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]

Created: 11 April 2002 by M.D. Guiry

Verified by: 10 September 2018 by M.D. Guiry

Accesses: This record has been accessed by users 4952 times since it was created.

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

Ducellier, F. (1918). Étude critique sur Euastrum ansatum Ralfs et quelques-unes de ses variétiés Helvétiques. Bulletin de la Société Botanique de Genève, série II 10: 35-46, 29 figs.
Rozeira, A. (1947). O aparecimento de Mesotaenium caldariorum Hansg. e Euastrum ansatum Ehrbg. em Portugal. Broteria 00: 83-85.

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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 25 September 2018.

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