162,343 species and infraspecific names are in the database, 22,760 images, 63,965 bibliographic items, 474,946 distributional records.

Ulva olivascens P.J.L.Dangeard, nom. inval. 1961

Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Ulvophyceae
Order Ulvales
Family Ulvaceae
Genus Ulva


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Ulva olivascens P.J.L.Dangeard
New Quay, Co. Clare, Ireland; note olive colour and plastic-like appearance. 29 Mar 2002. Michael Guiry. © Michael Guiry (mike.guiry@nuigalway.ie).


Publication details
Ulva olivascens P.J.L.Dangeard 1961: 22, footnote, nom. inval.

Published in: Dangeard, P.[J.L.] (1961). Le problème de l'espèce avec référence au groupe des Ulvacées. Le Botaniste 44: 21-36.

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

Status of name
This name is currently regarded as a synonym of Umbraulva dangeardii M.J.Wynne & G.Furnari

Type information
Type locality: Roscoff, France

No synonyms are currently included in AlgaeBase.

Nomenclatural notes
Proposed as a new name for Ulva olivacea P.J.L. Dangeard, non Hornemann, 1810. Invalid: "Dangeard (1951) described the new species Ulva olivacea, but this name was illegitimate because it was a later homonym of Ulva olivacea Hornemann (1810). Later, Dangeard (1961a, footnote on pag. 22) proposed the name Ulva olivascens as a replacement name; however, that name was also invalid because of Art. 41.5 of the Melbourne Code (McNeill et al. 2012). Assuming that Ulva olivascens was valid, Bae & Lee (2001) transferred the species to Umbraulva, but again without indicating the page of the publication of the purported basionym. Furnari (in Catra et al. 2006) re-proposed Umbraulva olivascens, but still invalidly, since he failed to recognize that the basionym was invalid." - (14 Mar 2007) - Wendy Guiry

General environment
This is a marine species.

Detailed distribution with sources (Click to Load)

Source of current name
Wynne, M.J. & Furnari, G. (2014). A census of J.P.L. [sic] Dangeard's invalid taxa with proposals to resolve the nomenclatural problems of some of them. Nova Hedwigia 98(3-4): 515-517.

Key references
Dangeard, P.J.L. (1964 '1963'). Biologie et sexualité de quelques Ulva. Le Botaniste 46: 181-204, 3 pls.

Hoeksema, B.W. & Hoek, C. van den (1983). The taxonomy of Ulva (Chlorophyceae) from the coastal region of Roscoff (Brittany, France). Botanica Marina 26: 65-86, 31 figs.

Created: 06 April 1996 by M.D. Guiry

Verified by: 23 February 2021 by M.D. Guiry

Accesses: This record has been accessed by users 2691 times since it was created.

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

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

Altamirano, M., Flores-Moya, A., Conde, F. & Figueroa, F.L. (2000). Growth seasonality, photosynthetic pigments, and carbon and nitrogen content in relation to enviornmental factors: a field study of Ulva olivascens (Ulvales, Chlorophyta). Phycologia 39: 50-58.
Gayral, P. (1962). Sur l'existence de gamétophytes chez Ulva olivascens P. Dang. du détroit de Gibraltar, description du développement de cette espèce. Le Botaniste 45: 83-91.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=221

Citing AlgaeBase
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 24 July 2021.

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