155,784 species and infraspecific names are in the database, 21,968 images, 60,214 bibliographic items, 439,333 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.

 

Fucus cartilagineus Forsskål

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

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

Homotypic Synonym(s)
Cosmarium ansatum (Ehrenberg ex Ralfs) Rabenhorst 1868

Heterotypic Synonym(s)
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
(as Euastrum ansatum Ehrenberg ex Ralfs)
Europe: Andorra (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Austria (Lenzenweger 1996), Britain (Brook & Johnson 2002, Whitton et al. 2003, John, Whitton & Brook 2011), Czech Republic (Stastny 2009, Stastny 2010, Petra Mazalová, Jana ), France (Kouwets 1999, Anon. 2017, Anon. 2017), Georgia (Barinova & Kukhaleishvili 2014, Barinova & Kukhaleishvili 2017), Germany (Ludwig & Schnittler 1996, Täuscher 2014, Täuscher 2016, Paul, Stastny & Doege 2017, Mattern, Stutz & Hennecke 2018, Kusber & Gutowski 2018), Hungary (Németh 2005), Ireland (Adams 1908, John, Williamson & Guiry 2011), Italy (Abdelahad et al. 2003), Latvia (Skuja 1928), Netherlands (Coesel 1985, Veen et al. 2015), Portugal (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Romania (Caraus 2002, Caraus 2012, Caraus 2017), Scandinavia (Karlason et al. 2018), Slovakia (Hindák & Hindáková 2016, Hindák & Hindáková 2016), Slovenia (Vrhovsek et al. 2006), Spain (Alvárez Cobelas 1984, Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Sweden (Skuja 1948), Turkey (Europe) (Sahín 2005, Aysel 2005), Ukraine (Petlovany & Tsarenko 2015, Malakhov, Kryvosheia & Tsarenko 2017).

North America: Alaska (AK) (Saunders 1901), Aleutian Islands (Skuja 1969), North Carolina (NC) (Fucikova et al. 2008), Northwest Territories (Sheath & Steinman 1982), Québec (Irénée-Marie 1939, Poulin, Hamilton & Proulx 1995), Tennessee (TN) (Johansen et al. 2007).

Caribbean Islands: Cuba (Comas González 2009).

South America: Brazil (Bicudo & Bicudo 1962, Bicudo 1969, Bicudo & Martau 1974, Bicudo & Ungaretti 1986, De-Lamonica-Freire & Heckman 1996, Lopes & Bicudo 2003, Araújo et al. 2010, Freitas & Loverde-Oliveira 2013).

Africa: Ghana (Smith, Smith & Nii Yemoh Annang 2015), Sudan (Reinhold 1937), Zaire (Golama Swana Kaketa 1996).

South-west Asia: Bangladesh (Ahmed et al. 2008, Ahmed et al. 2008), India (Gupta 2012, Das & Keshri 2016).

Asia: China (Hu & Wei 2006), Japan (Hinode 1955, Hinode 1959, Hirose, Yamagishi & Akiyama 1977), Russia (Far East) (Medvedeva & Nikulina 2014), Taiwan (Shao 2003-2014, Shao 2003-2014).

South-east Asia: Singapore (Pham et al. 2011), Thailand (Hirano 1992).

Australia and New Zealand: New South Wales (Day et al. 1995, Dingley 2001), New Zealand (Chapman, Thompson & Segar 1957, Croasdale & Flint 1986, Broady et al. 2012), Northern Territory (Day et al. 1995, Ling & Tyler 2000 ), Queensland (Day et al. 1995), Tasmania (Day et al. 1995), Victoria (Day et al. 1995).

Pacific Islands: Hawaiian Islands (HI) (Sherwood 2004).

(as Cosmarium ansatum (Ehrenberg ex Ralfs) Rabenhorst)
Europe: France (Kouwets 1999, Anon. 2017), Ireland (Adams 1908), Slovakia (Hindák & Hindáková 2016).

South America: Argentina (Tell 1985), Brazil (Biolo & Bicudo 2018).

(as Euastrum rotundum Playfair)
Asia: Taiwan (Shao 2003-2014).

Australia and New Zealand: New Zealand (Broady et al. 2012).

(as Euastrum ansatum var. dideltiforme Ducellier)
Europe: Hungary (Németh 2005), Romania (Caraus 2002), Slovakia (Hindák & Hindáková 2016, Hindák & Hindáková 2016), Slovenia (Vrhovsek et al. 2006).

North America: North Carolina (NC) (Fucikova et al. 2008), Québec (Poulin, Hamilton & Proulx 1995), Tennessee (TN) (Johansen et al. 2007).

South-west Asia: Bangladesh (Ahmed et al. 2008), India (Gupta 2012, Das & Keshri 2016).

Asia: Japan (Hinode 1962, Hirose, Yamagishi & Akiyama 1977).

South-east Asia: Thailand (Hirano 1992).

Australia and New Zealand: Northern Territory (Day et al. 1995), Queensland (Day et al. 1995, Bostock & Holland 2010), South Australia (Day et al. 1995).

(as Cosmarium pseudopyramidatum var. ansatum Krieger & Gerloff)
Europe: Germany (Ludwig & Schnittler 1996, Kusber & Gutowski 2018), Italy (Abdelahad et al. 2003), Slovenia (Vrhovsek et al. 2006), Spain (Alvárez Cobelas 1984, Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998).

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.

Kanetsuna, Y. & Yamagishi, T. (eds) (2018). Desmids of southeast Asia. pp. [1]-xiv, [1]-429, VIII colour photographic pls, 44 test-figs, 94 pls. Dera Dun - 248 001 (India): Bishen Singh Mahendra Pal Singh.

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.

Prescott, G.W., Croasdale, H.T. & Vinyard, W.C. (1977). A synopsis of North American desmids Part II. Desmidiaceae: Placodermae Section 2. pp. [i-vii], 1-411, incl. pls LVIII-CXLVII. Lincoln & London: University of Nebraska Press.

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: 07 January 2019 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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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 15 July 2019.

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