152,876 species and infraspecific names are in the database, 20,938 images, 59,117 bibliographic items, 408,264 distributional records.

Heringia J.Agardh, 1842

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Gigartinales
Family Caulacanthaceae

Lectotype species: Heringia mirabilis (C.Agardh) J.Agardh

Original publication:Agardh, J.G. (1842). Algae maris Mediterranei et Adriatici, observationes in diagnosin specierum et dispositionem generum. pp. [i]-x, 1-164. Parisiis [Paris]: Apud Fortin, Masson et Cie.
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Type designated in Agardh, J.G. (1852). Species genera et ordines algarum, seu descriptiones succinctae specierum, generum et ordinum, quibus algarum regnum constituitur. Volumis secundi: Algas florideas complectens. Part 2, fasc. 2. pp. 577-700 [701-720, Addenda and Index]. Lundae [Lund]: C.W.K. Gleerup.
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Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Kylin, H. (1956). Die Gattungen der Rhodophyceen. pp. i-xv, 1-673, 458 figs. Lund: C.W.K. Gleerups.

Nomenclatural notes
Agardh (1842: 68): "Typo Sphaerococco rostrato et Spaer. mirabili Ag.". - (6 Aug 2014) - M.D. Guiry

Description: Plants reach 15 cm in length and occur either as epiphytes on Cladophora or in association with sponges. Searles (1968) explains that the specific epithet refers to what Agardh considered to be the miraculous metamorphosis that characterized this species as it turned from a green into a red alga. Plants grow from a discoid holdfast, the erect axes being dichotomous and either terete or slightly flattened. The central axial filament bears a single periaxial cell. Carpogonial branches are 3-celled, oriented outward, and borne within papillae that terminate fertile axes. Fertilization results in a single, relatively short connecting filament that fuses to an intercalary auxiliary cell, which cuts off several gonimoblasts toward the thallus surface. Chains of 2-4 carposporangia radiate from a narrow region of inner sterile tissue borne on an elaborate fusion cell. Spermatangia are borne terminally and either singly or in pairs on outer cortical mother cells. Plants are probably dioecious. Tetrasporangia are basally connected to outer cortical bearing cells and form in slight swellings near branch tips.

Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 4 Nov 2010 by M.D. Guiry.

Comments: Distribution: The single species occurs both intertidally and subtidally in South Africa and South West Africa.

Numbers of names and species: There are 3 species names in the database at present, of which 1 has been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is 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):

Click here to also show infraspecific names in the list below.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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.

Created: 28 December 2000 by M.D. Guiry

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Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=39900

Citing AlgaeBase
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 September 2018.

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