Odonthalia Lyngbye, 1819, nom. cons.

Holotype species: Odonthalia dentata (Linnaeus) Lyngbye

Original publication and holotype designation: Lyngbye, H.C. (1819). Tentamen hydrophytologiae danicae continens omnia hydrophyta cryptogama Daniae, Holsatiae, Faeroae, Islandiae, Groenlandiae hucusque cognita, systematice disposita, descripta et iconibus illustrata, adjectis simul speciebus norvegicis. pp. [i]-xxxii, [1]-248, 70 pls. Hafniae [Copenhagen]: typis Schultzianis, in commissis Librariae Gyldendaliae.

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Description: Compressed to flat upright thalli, several attached by a discoid holdfast; polysiphonous with distichous, alternate branches. Branching exogenous, up to 6th order; 1st order branches usually indeterminate, highest orders and a some intermixed with other orders determinate. Adventitious branches formed on axes and in axils of branchlets in most species. Proximal parts of axes, especially adventitious ones, may be cylindrical; axes in some species visible as a midrib; congenital fusion of branch and axis tissue in some species; thalli up to 35 cm long, ~4.5 mm broad. Pericentral cells 6, dividing transversely into tiers, distal cell in series attached to axial cell. Sporelings upright, producing 1st order branches in an alternate-distichous manner. Cystocarps spheroid, ovoid or urceolate, sometimes with a spur-like outgrowth; located distally on unmodified branches in corymbose or racemose arrangements. Spermatangia in sori covering distal parts of determinate branches. Tetrasporangial branchlets distally located on unmodified branchlets; sometimes in corymbose to racemose aggregates and tetrasporangia extending into axes of pinnate branchlets.

Information contributed by: R.E. Norris. The most recent alteration to this page was made on 2017-01-26 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Comments: On northern Pacific, Atlantic and Arctic Ocean shores, littoral to sublittoral.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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: https://www.algaebase.org/search/genus/detail/?genus_id=32792

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 26 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 February 2024

Currently in AlgaeBase: