159,870 species and infraspecific names are in the database, 22,563 images, 61,899 bibliographic items, 468,408 distributional records.

Synedra tenera W.Smith 1856

Publication details
Synedra tenera W.Smith 1856: 98, no fig.

Published in: Smith, W. (1856). A synopsis of the British Diatomaceae; with remarks on their structure, functions and distribution; and instructions for collecting and preserving specimens. Vol. 2 pp. [i-vi] - xxix, 1-107, pls 32-60, 61-62, A-E. London: John van Voorst.
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Type species
The type species (lectotype) of the genus Synedra is Synedra balthica Ehrenberg.

Status of name
This name is currently regarded as a synonym of Fragilaria tenera (W.Smith) Lange-Bertalot

Origin of species name
Adjective (Latin), soft, delicate (Brown 1956).

Heterotypic Synonym(s)
Synedra tenera var. genuina A.Cleve 1953

General environment
This is a freshwater species.

Type information
Syntype localities: freshwater. Saltcoats: Dr. Arnott. New Forest; Lough Alloa, Co. Cork; near Blarney and near Killaloe, Co. Cork: W. Smith (Smith 1856: 98). Notes: Lectotype locality: Blarney, Co. Cork, Ireland. "Lectotype is selected from Coll. W. Smith VI 46 C8, housed in Herbarium National Botanic Garden of Belgium, Meise. This is the same material as housed in British Museum, London, as slide no BM. 20878 from Blarney, South Ireland. Lectotype designated by H. Lange-Bertalot in Krammer & Lange-Bertalot 1991, p. 460." (Lange-Bertalot & Ulrich 2014: 7).

Detailed distribution with sources
(as Synedra tenera W.Smith)
Atlantic Islands: Iceland (Foged 1974).

Europe: Britain (Hartley 1986, Sims 1996, Whitton & al. 2003), France (Anon. 2017), Germany (Stutz & Mattern & al. 2018), Ireland (Foged 1977, Wolnik & Carter 2014), Netherlands (Veen & al. 2015), Scandinavia (Karlason & al. 2018), Slovakia (Hindák & Hindáková 2016), Spain (Varela 1982, Álvarez Cobelas & Estévez García 1982).

North America: Alaska (Foged 1981), Laurentian Great Lakes (Stoermer, Kreis & Andresen 1999), Northwest Territories (Sheath & Steinman 1982), United States of America (Patrick & Reimer 1966, Kociolek 2005, Eberle 2008).

Asia: China (Y.Z.Qi & al. 2004, Fan & Liu 2016), Korea (Lee, Choi & Lee 1995, Lee & Yoon 2010), Mongolia (Edlund & al. 2001).

Australia and New Zealand: New South Wales (Day & al. 1995), Queensland (Day & al. 1995), Victoria (Day & al. 1995).

(as Synedra tenera var. genuina A.Cleve)
North America: Mexico (López-Fuerte & Siqueiros-Beltrones 2016).

Source of current name
Lange-Bertalot, H. (1980). Zur systematischen Bewertung der bandförmigen Kolonien bei Navicula und Fragilaria. Kriterien für die Vereinigung von Synedra (subgen. Synedra) Ehrenberg mit Fragilaria Lyngbye. Nova Hedwigia 33: 723-787, 16 pls.

Key references
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.

Hustedt, F. (1930). Bacillariophyta (Diatomeae) Zweite Auflage. In: Die Süsswasser-Flora Mitteleuropas. Heft 10. (Pascher, A. Eds), pp. [i]-vii, [1]-466. Jena: Verlag von Gustav Fischer.

Lee, J.H. (2010). Fragilaria, Hannaea, Pseudostaurosira, Punctastriata, Staurosira, Staurosirella. In: Algal flora of Korea. Volume 3, Number 2 . Chrysophyta: Bacillariophyceae: Pennales: Araphidineae: Diatomaceae. Freshwater diatoms II. (Joh, G., Lee, J.H., Lee, K. & Yoon, S.-K. Eds), pp. 53-96. Incheon: National Institute of Biological Resources.

Patrick, R.[M.] & Reimer, C.W. (1966). The diatoms of the United States exclusive of Alaska and Hawaii. Volume 1: Fragilariaceae, Eunotiaceae, Achnanthaceae, Naviculaceae. Monographs of the Academy of Natural Sciences of Philadelphia 13: 1-688.

Proschkina-Lavrenko, A.I. [Ed.] (1950). Diatomovyi Analiz, Kniga 3. Opredelitel' iskopaemykh i sovremennykh diatomik vodoroslei Poriadok Pennales. Vol. 3 (1). pp. [1]-398, 117 pls. Kiev: Botanicheskii Institut im V.L. Komarova Akademii Nauk S.S.S.R. Gosudarstvennoe Izdatelystvo Geologicheskoi Literatury. [in Russian]

Qi Yuzao & Li Jiaying & Qi Yuzao [ Qi, Y.Z. & Li, J.Y.] with Xie Shuqi & Zhang Zian [Xie,S.-Q. & Zhang, Z.] (2004). Flora algarum sinicarum aquae dulcis Tomus X Bacillariophyta Pennatae (Arpahidiales Raphidionales). pp. [1-8], i-xix, 1-161, plus pls I-XLI. Beijing: Science Press.

Sims, P.A. (ed.) (1996). An atlas of British diatoms arranged by B. Hartley based on illustrations by H.G. Barber and J.R. Carter. pp. [2], 1-601, incl. 290 pls. Bristol: Biopress Ltd.

Created: 11 April 2002 by M.D. Guiry

Verified by: 13 November 2020 by M.D. Guiry

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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 17 January 2021.

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