Ulva flexuosa Wulfen 1803

Current name: Ulva flexuosa Wulfen
Hawaii; scale is 5 mm - 15 August 2011. J.M. Huisman

Publication Details
Ulva flexuosa Wulfen 1803: 1

Published in: Wulfen, F.X. (1803). Cryptogama aquatica. Archives de Botanique 3: 1-64, pl. 1.

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Type Species
The type species (holotype) of the genus Ulva is Ulva lactuca Linnaeus.

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

Type Information
Type locality: "Duini ad littora maris Adriaticia" [Duino near Trieste, Italy]; (Wulfen 1803: [1]) Type: W; Wulfen No. 23 (Hayden & al. 2003: 289, table 4)

Origin of Species Name
Adjective (Latin), zigzag, bent alternately in opposite directions (Stearn 1983).

General Environment
This is a marine species.

Created: 27 October 1998 by M.D. Guiry.

Last updated: 27 January 2025

Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

Nomenclatural note
Replaced name: Conferva paradoxa Roth, nom. illeg., non Conferva paradoxa O.F.Müller. - (29 August 2007) - G.M. Guiry

Taxonomic note
John et al. (2004) give Enteromorpha lingulata J. Agardh, E. paradoxa (Dillwyn) Kützing and E. erecta (Lyngb.) J. Agardh as synonyms of this species. John et al. (2004) have followed Hayden et al. (2003) who consider Enteromorpha lingulata close to or identical with E. flexuosa. For further discussion of the conspecificity of these two species, see Lawson & Price (1969). - (11 May 2006) - G.M. Guiry

Distributional note
Results of studies carried out by O'Kelly et al. (2010) suggest that Ulva populations in tropical and subtropical regions consist of species that are largely unique to these areas, for which the application of names based on types from temperate and boreal European and North American waters is inappropriate. - (01 September 2010) - G.M. Guiry

Habitat note
Euryhaline, primarily freshwater species, occurring in a wide variety of flowing and stagnant waters. It prefers highly oxygenated, alkaline, and eutrophic waters, with high levels of sulphates, and in mildly brackish habitats. - (14 March 2018) - M.D. Guiry

Conservational note
According to Mares et al. (2011:1187), Ulva flexuosa [subspp.] should not be considered as alien or invasive in inland European waters. - (22 December 2011) - G.M. Guiry

Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=12999

Citing AlgaeBase
Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 27 January 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 March 2025