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Phormidium retzii Kützing ex Gomont

Classification:
Empire Prokaryota
Kingdom Eubacteria
Subkingdom Negibacteria
Phylum Cyanobacteria
Class Cyanophyceae
Subclass Oscillatoriophycidae
Order Oscillatoriales
Family Oscillatoriaceae
Genus Phormidium

Pictures

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Phormidium retzii Kützing ex Gomont
Panama. In situ: mucilaginous undulating tufts, epiphytic as shown here or on hard substrata. D.S. Littler. © Diane Littler (littlerd@si.edu).

Phormidium retzii Kützing ex Gomont
Panama. Trichomes straight or curved, tangled; sheaths thin, delicate soon diffusing into amorphous mass. D.S. Littler. © Diane Littler (littlerd@si.edu).

Phormidium retzii Kützing ex Gomont
Panama. Cell joints constricted in younger filaments, difficult to observe in older filaments. D.S. Littler. © Diane Littler (littlerd@si.edu).

Phormidium retzii Kützing ex Gomont
Panama. Terminal cells rounded; cell joints often constricted in younger filaments. D.S. Littler. © Diane Littler (littlerd@si.edu).

 

Nitophyllum flabelligerum J.Agardh

Phormidium retzii Kützing ex Gomont Panama. Cell joints constricted in younger filaments, difficult to observe in older filaments
© Diane Littler (littlerd@si.edu)

Publication details
Phormidium retzii Kützing ex Gomont 1892: 175, pl. V [5]: figs 6-9 (as 'Retzii' )

Published in: Gomont, M. (1892 '1893'). Monographie des Oscillariées (Nostocacées Homocystées). Deuxième partie. - Lyngbyées. Annales des Sciences Naturelles, Botanique, Série 7 16: 91-264, pls 1-7.
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Type species
The type species (lectotype) of the genus Phormidium is Phormidium lucidum Kützing ex Gomont.

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

Heterotypic Synonym(s)
Oscillatoria retzii C.Agardh 1812
Conferva retzii (C.Agardh) Sommerfelt 1826
Microcoleus retzii (C.Agardh) Rabenhorst 1847
Lyngbya retzii Hansgirg 1892

General environment
This is a freshwater species.

Detailed distribution with sources (Click to Load)

Key references
Geitler, L. (1932). Cyanophyceae. In: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. Ed. 2. (Rabenhorst, L. Eds) Vol. 14, pp. 673-1196, i-[vi]. Leipzig: Akademische Verlagsgesellschaft.

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]

Komárek, J. & Anagnostidis, K. (2005). Süsswasserflora von Mitteleuropa. Cyanoprokaryota: 2. Teil/2nd Part: Oscillatoriales. Vol. 19 pp. 1-759. München: Elsevier Spektrum Akademischer Verlag.

Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.

McGregor, G.B. (2007). Freshwater Cyanoprokaryota of North-Eastern Australia 1: Oscillatoriales. Flora of Australia Supplementary Series Number 24. pp. [i]-vi, [1]-123, 17 figs, 14 pls. Canberra: Australia Biological Resources Study.

Whitton, B.A. (2011). Cyanobacteria (Cyanophyta). 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. 31-158. Cambridge: Cambridge University Press.

Created: 11 April 2002 by M.D. Guiry

Verified by: 23 July 2018 by M.D. Guiry

Accesses: This record has been accessed by users 2385 times since it was created.

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

Spearing, J.K. (1961). Vital staining of Phormidium retzii. British Phycological Bulletin 2: 103-104.

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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 13 November 2018.

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