153,875 species and infraspecific names are in the database, 21,014 images, 59,594 bibliographic items, 413,572 distributional records.

Audouinella Bory, 1823, nom. cons.

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Nemaliophycidae
Order Acrochaetiales
Family Acrochaetiaceae

Holotype species: Audouinella miniata Bory

Currently accepted name for the type species: Audouinella hermannii (Roth) Duby

Original publication and holotype designation: B[ory de Saint-Vincent, J.B.G.M.] (1823). Céramie Ceramlum.. In: Dictionnaire Classique d'Histoire Naturelle. (Audouin, I. et al. Eds) Vol. 3, pp. 341-342. Paris: Rey et Gravier; Baudouin Frères.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Harper, J.T. & Saunders, G.W. (2002). A re-classification of the Acrochaetiales based on molecular and morphological data, and establishment of the Colaconematales, ord. nov.. British Phycological Journal 37: 463-475.

Nomenclatural notes
The orthography "Audouinella" has been conserved over the original "Auduinella". Named for the French entomologist Jean Victor Audouin (1797-1841). - (19 Oct 2015) - M.D. Guiry

Taxonomic notes
At one time including virtually all species of Acrochaetiaceae, the genus is circumscribed (Harper & Saunders 2002) now to include only freshwater species. - (5 Oct 2010) - M.D. Guiry

Description: Thallus uniseriate filamentous, heterotrichous or with unicellular base, rarely over 5 mm high. Cells with one to several parietal chloroplasts of various shapes, always without pyrenoids. Sexual life histories, where known, with 2 free phases, in some species the gametophyte with a unicellular base and smaller than the tetrasporophyte, in others (including the type species) the generations isomorphic. Spermatangia in small corymbose clusters. Carpogonia sessile or pedicellate, distinct carpogonial filament absent. Post-fertilization development direct; carposporophytes globose with terminal sporangia; sterile involucre absent. Tetrasporangia single or in clusters, cruciately divided. Monosporangia in many species the only known form of propagation, but also produced by gametophytes and tetrasporophytes of sexual reproductive species. Worldwide, with both marine and freshwater representatives; epilithic, epi-/endophytic or epi-/endozoic. At present a rather heterogenous assembly of species, in need of revision. Emended by J.T. Harper & G.W. Saunders (2002: 471). Now comprises freshwater spp. [Acrochaetium comprises marine spp].

Information contributed by: H. Stegenga. The most recent alteration to this page was made on 4 Jul 2017 by M.D. Guiry.

Common names

(as Audouinella)
Swedish: Pysslingalger (Tolstoy & Österlund 2003).

Numbers of names and species: There are 253 species names in the database at present, as well as 14 infraspecific names. Of the species names, 44 have 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.

References
Sheath, R.G. (2003). Red Algae. In: Freshwater Algae of North America, Ecology & Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 197-224. San Diego: Academic Press.

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.

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

Verified by: 04 July 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32946

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

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