Cladophora Kützing, 1843, nom. cons.

Lectotype species: Cladophora oligoclona (Kützing) Kützing

Original publication: 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.

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Type designated in: Setchell, W.A. & Gardner, N.L. (1920). The marine algae of the Pacific coast of North America. Part II. Chlorophyceae. University of California Publications in Botany 8: 139-374, pls 9-33.

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Description: Thallus of uniseriate, erect or prostrate filaments, profusely to very sparsely branched, rarely without any branches, attached to the substratum by primary rhizoids produced by the basal cell or by a simple discoid holdfast, or unattached. No formation of secondary rhizoids. Filaments usually decreasing in diameter upwards. Growth by apical and/or intercalary cell divisions, cell enlargement and formation of branches. Predominantly apical growth can lead to very regular acropetal organisation. The ratio of intercalary and apical growth can vary greatly between and within species, as well as in different parts of the thallus. Cells produce a single lateral branch below the cross-wall or form a pseudodichotomy, older cells frequently produce secondary lateral branches, with up to six laterals on one cell in some taxa. Cells cylindrical, barrel-shaped or club-shaped, containing numerous angular to disciform chloroplasts forming a parietal network or a more or less continuous, dense layer. Most chloroplasts with a single, bilenticular pyrenoid. Cell walls range from thin to thick and striated. Sexual reproduction is diplohaplontic and isomorphic, asexual reproduction by zoospores and by fragmentation of the thallus is common. Swarmers are released through an aperture at the apical pole of the sporangia and gametangia. Thickwalled, swollen akinetes filled with starch are frequently formed under unfavourable conditions, especially by freshwater taxa.

Information contributed by: Skaloud et al. (2018).. The most recent alteration to this page was made on 2023-04-19 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe: Chlorophyta V: Ulvophyceae. Vol. 13 pp. [i]-vii, [1]-288, 182 figures. Berlin: Springer Spektrum.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

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Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 19 April 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 23 May 2024

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