Aglaothamnion roseum ( ) & L'Hardy-
Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos Fal Estuary, Cornwall, England
© David Fenwick
Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos 1993: 522
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.
The type species (holotype) of the genus Aglaothamnion is Aglaothamnion furcellariae (J.Agardh) Feldmann-Mazoyer.
Status of name
This name is currently regarded as a synonym of Gaillona rosea (Roth) Athanasiadis
Ceramium roseum Roth
Type locality: Bayonne [Pyrénées-Atlantiques, France] (Dixon & Price 1981: 136). Not specified: (Dixon & Price 1981: 136). Notes: The existence of Roth herbarium is at present a matter of doubt. Usually, it is assumed to have been lost in the bombing of the Berlin-Dahlem museum (Pilger, 1953); this seems true for specimens of Ceramium roseum. There is a specimen at LD (Herb. Alg. Agardh 18466), labelled "‘Ceramium roseum Roth Bayonne dedit Roth ipse non rosea Dillw."’ in C. Agardh'’s hand, but the status of this specimen is uncertain. Subsequent interpretations (Dillwyn, 1802; Smith, 1802) were based on a specimen collected in 1797 by Sowerby at Yarmouth and sent to Roth for comment by Dawson Turner. This specimen, which Roth identified as Ceramium roseum, passed to K (now at BM-K), with a duplicate of the original Sowerby collection at BM. Although not part of the type collection, these specimens help to unravel subsequent interpretations of this taxon, of which there have been several. The BM-K specimen is here designated as of neotype status.
Origin of species name
Adjective (Latin), rose-coloured (Stearn 1973).
No synonyms are currently included in AlgaeBase.
John et al. (2003) cite the authority for this species as (Roth) Maggs & Hommersand, which is incorrect.
John et al. (2003) list Callithamnion roseum sensu Harvey as a synonym of this species.
Although reported from the Mediterranean (Decrock, 1914), this record is considered erroneous (Garreta et al., in prep.).
This is a marine species.
(as Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos)
Swedish: Rosendun (Tolstoy & Österlund 2003).
Source of current name
Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. II. pp. , 763-1504. Thessaloniki: Published and distributed by the author.
Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. -215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff.
Maggs, C.A. & Hommersand, M.H. (1993). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 3A. Ceramiales. pp. [i]-xv, 1-444, 129 figs, map. London: HMSO.
Mathieson, A.C. & Dawes, C.J. (2017). Seaweeds of the Northwest Atlantic. pp. [i]-x, 1-798, CIX pls. Amherst & Boston: University of Massachusetts Press.
Created: 30 July 1996 by M.D. Guiry
Verified by: 01 August 2017 by M.D. Guiry
Accesses: This record has been accessed by users 2312 times since it was created.
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=716
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 25 May 2019.