Compsothamnion decompositum (J.Agardh) Maggs & L'Hardy-Halos 1993
Publication Details
Compsothamnion decompositum (J.Agardh) Maggs & L'Hardy-Halos 1993: 528
Published in: Maggs, C.A. & L'Hardy-Halos, M.-T. (1993). Nuclear staining in algal harbarium material: a reappraisal of the holotype of Callithamnion decompositum J. Agardh (Rhodophyta). Taxon 42: 521-530.
Request PDFType Species
The type species (holotype) of the genus Compsothamnion is Compsothamnion thuioides (Smith) F.Schmitz.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Basionym
Callithamnion decompositum J.Agardh
Type Information
Type locality: "in oceano atlantico ad orcas Galliae"; (Dixon & Price 1981: 132) Holotype: LD, Herb. Alg. Agardh; 18964 (Dixon & Price 1981: 132) Notes: Comments: This entity is often attributed, partly or completely to Grateloup, due to a misinterpretation of the comment by J. G. Agardh that Grateloup had given the manuscript name Mertensia decomposita to the specimen used as the basis for the original treatment.
Origin of Species Name
Adjective (Latin), divided more than once (Neal 1993).
General Environment
This is a marine species.
Created: 02 August 1996 by M.D. Guiry.
Last updated: 23 November 2023
Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
Nomenclatural note
John et al. (2004) cite the authority for this species as (Grateloup ex J. Agardh) Maggs & Halos; this is incorrect as the name supplied by Grateloup was "Mertensia decomposita Grateloup" and the name should be solely credited to J. Agardh. - (11 May 2006) - G.M. Guiry
Distributional note
Known in Ireland and Britain from only one site in Co. Donegal, Ireland (Maggs & Hommersand 1993, p. 161, fig. 52 A-B). "Finally, agreeing with Gómez Garreta et al. (2001: 446), we think that Mediterranean records of Callithamnion decompositum J. Agardh [= Compsothamnion decompositum (J. Agardh) Maggs et L'Hardy-Halos, taxon excludendum], are misidentifications with A. tripinnatum. Consequently, we consider Compsothamnion decompositum as a taxon excludendum." (Cormaci & al. 2023: 312, 366). - (11 May 2006) - G.M. Guiry
Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=721
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 23 November 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 May 2025
