Callithamnion strictum C.Agardh 1828
Publication Details
Callithamnion strictum C.Agardh 1828: 185
Published in: Agardh, C.A. (1828). Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Voluminis secundi. Sectio prior. pp. [i]-lxxvi, [i]-189. Gryphiae [Greifswald]: sumptibus Ernesti Mauriti [Ernst Mauritius].
Request PDFPublication date: Sept-Dec 1828
Type Species
The type species (lectotype) of the genus Callithamnion is Callithamnion corymbosum (Smith) Lyngbye.
Status of Name
This name is currently regarded as a synonym of Spermothamnion strictum (C.Agardh) Ardissone.
Source of Synonymy
Agardh, J.G. (1883). Till algernes systematik. Nya bidrag. (Tredje afdelningen.). Lunds Universitets Års-Skrift, Afdelningen for Mathematik och Naturvetenskap 19(2): 1-177, IV pls.
Origin of Species Name
Adjective (Latin), drawn close together, very upright, very straight (Stearn 1983).
General Environment
This is a marine species.
Created: 04 April 1999 by M.D. Guiry.
Last updated: 05 December 2023
Verification of Data
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Taxonomic note
"This species, was described by Agardh (1828: 185) from Tangier (Morocco). In the Mediterranean Sea it was then recorded by J. Agardh (1851: 34); Zanardini (1863: 285 pl. XXVII/B); Dufour (1865: 45) and Ardissone & Strafforello (1877: 168) Hauck (1882; 45) considered it (partim) as a synonym of Spermothamnion flabellatum. Ardissone (1883: 302) combined it under the genus Spermothamnion as S. strictum (C. Agardh) Ardissone. He, as previously noted by Bornet in Bornet & Thuret (1876: 26), distinguished it from the related species S. flabellatum, in showing larger thalli, and barrel shaped and wider cells of prostrate axes. It should be noted that Maggs & Hommersand (1993: 145), after having described thalli of S. strictum from British Isles, ignoring S. flabellatum noted that "Thallus size and the diameter of erect axes vary widely... The large and small thallus forms are tentatively considered conspecific, based on morphology of..., but further studies, particularly of reproductive material, are required.". Therefore, only the finding of fertile gametophytes (to date unknown) and a more accurate comparison with S. flabellatum, could confirm or not the conspecificity between the two species already considered such by Hauck (1882: 45). See also the note to S. flabellatum." (Cormaci & al. 2023: 431-432). - (05 December 2023) - M.D. Guiry
Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=18235
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 05 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 10 June 2025
