Audouinella Bory, 1823, nom. cons.

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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Description: Thalli filamentous, heterotrichous, uniaxial, reddish, growing typically in dense tufts; basal portion composed of rhizoidal outgrowth, simple or parenchymatous disc; erect filaments consisting of cylindrical cells with unilateral, opposite, or alternate branches; cells contain one to several reddish plastids without pyrenoids; sexual reproduction by spermatangia and carpogonia; spermatangia colorless, arising in clusters on branch tips; carpogonia sessile or stalked, with a cylindrical base and thin trichogyne; distinct carpogonial filament absent; fertilized carpogonia giving rise directly to gonimoblast filaments; carposporophytes spherical to sub-spherical, consisting of a compact mass of short gonimoblast filaments with terminal carposporangia; carposporangia obovoid to subspherical; tetrasporangia single or in clusters, cruciately cleaved, formed at branch tips; asexual reproduction by monosporangia are the only known mode of propagation; monosporangia obovoidal, elliptical, spherical, or sub-spherical, arising from short branches on gametophytes or tetrasporophytes.

Information contributed by: Modified from Vis & Necchi (2021: 97).. The most recent alteration to this page was made on 2022-04-12 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: 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.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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: https://www.algaebase.org/search/genus/detail/?genus_id=32946

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 12 April 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 November 2024