Aglaothamnion Feldmann-Mazoyer, 1941: 451
Classification:
Empire Eukaryota
Kingdom Plantae
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Callithamniaceae
Tribe Callithamnieae
Holotype species: Aglaothamnion furcellariae (J.Agardh) Feldmann-Mazoyer
Currently accepted name for the type species: Aglaothamnion tenuissimum (Bonnemaison) Feldmann-Mazoyer
Original publication and holotype designation:Feldmann-Mazoyer, G. (1941 '1940'). Recherches sur les Céramiacées de la Méditerranée occidentale. pp. 1-510, 191 figs, pls I-IV. Alger: Imprimerie Minerva.
Taxonomic status: currently recognized as a distinct genus.
Description: Callithamnion-like, to several cm high, axes monosiphonous variously branched with alternate determinate branchlets from cells of upper branches. Some species with axes corticated by filaments arising from basal cells of branchlets.
Procarp and carposporophyte as for Callithamnion with pairs of opposite pericentral cells formed on axial cells below branch apices. Four-celled carpogonial branch developed on first-formed pericentral cell (supporting cell) with carpogonium placed between 2 auxiliary cells cut off respectively from the upper part of the 2 pericentral cells. Fertilization between carpogonium and each auxiliary cell leads to development of 2 carposporophytes. Spermatangia in clusters on upper branchlets. Tetrasporangia adaxial, in l's or 2's, on branchlets, usually sessile and tetrahedrally-divided.
Comments: Aglaothamnion is distinguished from Callithamnion Lyngbye on the basis of uninucleate thallus cells, carpogonial branches zig-zag in form and spherical, irregularly-lobed groups of carposporangia. Some species attributed to Callithamnion share one or more of these features and further genetic data is needed to establish Aglaothamnion as distinct from Callithamnion sensu lato.
Widespread in most parts of the world.
NCBI Nucleotide Sequences
Numbers of names and species: There are 45 species (and infraspecific) names in the database at present, of which 33 have been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
Aglaothamnion bipinnatum (P.L.Crouan & H.M.Crouan) Feldmann & G.Feldmann C
Aglaothamnion bipinnatum (P.L.Crouan & H.M.Crouan) Feldmann-Mazoyer S
Aglaothamnion boergesenii (Aponte & D.L.Ballantine) L'Hardy-Halos & Rueness C
Aglaothamnion brodiei (Harvey) Feldmann-Mazoyer S
Aglaothamnion byssoides (Arnott ex Harvey) C.F.Boudouresque & M.M.Perret-Boudouresque S
Aglaothamnion callophyllidicola (Yamada) Boo, I.K.Lee, Rueness & Yoshida C
Aglaothamnion caudatum (J.Agardh) Feldmann-Mazoyer C
Aglaothamnion chadefaudii L'Hardy-Halos C
Aglaothamnion chejuense G.H.Kim & I.K.Lee C
Aglaothamnion collinsii Aponte, D.L.Ballantine & J.N.Norris C
Aglaothamnion cordatum (Børgesen) Feldmann-Mazoyer C
Aglaothamnion decompositum (J.Agardh) Halos P
Aglaothamnion diaphanum L'Hardy-Halos & Maggs C
Aglaothamnion endovagum (Setchell & N.L.Gardner) I.A.Abbott C
Aglaothamnion fasciculatum (Harvey) Maggs & L'Hardy-Halos C
Aglaothamnion feldmanniae Halos C
Aglaothamnion felipponei (Howe) Aponte, Ballantine & J.N.Norris C
Aglaothamnion flexibile N.E.Aponte & D.L.Ballantine C
Aglaothamnion furcellariae (J.Agardh) Feldmann-Mazoyer S - type
Aglaothamnion gaillonii (P.L.Crouan & H.M.Crouan) Halos C
Aglaothamnion gallicum (Nägeli) Halos ex Ardré C
Aglaothamnion halliae (F.S.Collins) N.E.Aponte, D.L.Ballantine & J.N.Norris C
Aglaothamnion herveyi (M.A.Howe) N.E.Aponte, D.L.Ballantine, & J.N.Norris C
Aglaothamnion hookeri (Dillwyn) Maggs & Hommersand C
Aglaothamnion monopodon Børgesen C
Aglaothamnion neglectum Feldmann-Mazoyer S
Aglaothamnion obstipum Cowling, Kraft & J.A.West C
Aglaothamnion okiense Kajimura C
Aglaothamnion oosumiense Itono C
Aglaothamnion polyspermum f. scopulorum (C.Agardh) Parke S
Aglaothamnion polyspermum var. scopulorum (C.Agardh) Halos S
Aglaothamnion polyspermum (C.Agardh) Parke S
Aglaothamnion priceanum Maggs, Guiry & Rueness C
Aglaothamnion pseudobyssoides (P.L.Crouan & H.M.Crouan) Halos C
Aglaothamnion rabenhorstii (Kützing) L'Hardy-Halos C
Aglaothamnion rigidulum De Clerck, Bolton, R.J.Anderson & Coppejans S
Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos C
Aglaothamnion sarcodiae Børgesen C
Aglaothamnion scopulorum (C.Agardh) Feldmann-Mazoyer C
Aglaothamnion sepositum (Gunnerus) Maggs & Hommersand C
Aglaothamnion tenuissimum var. mazoyerae G.Furnari, L'Hardy-Halos, Rueness & Serio C
Aglaothamnion tenuissimum (Bonnemaison) Feldmann-Mazoyer C
Aglaothamnion tripinnatum (C.Agardh) Feldmann-Mazoyer C
Aglaothamnion uruguayense (W.R.Taylor) N.E.Aponte, D.L.Ballantine & J.N.Norris C
Aglaothamnion westbrookiae Rueness & L'Hardy-Halos S
References
Choi, H.-G., Kraft, G.T., Kim, H.-S., Guiry, M.D. & Saunders, G.W. (2008). Phylogenetic relationships among lineages of the Ceramiaceae (Ceramiales, Rhodophyta) based on nuclear small subunit rDNA sequence data. Journal of Phycology 44: 1033-1048.
Wynne, M.J. & Schneider, C.W. (2010). Addendum to the synoptic review of red algal genera. Botanica Marina 53: 291-299.
Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,
organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA)
and intended to be published in CD format.
These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above.
The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.
Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=125
Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:8805
