Rhodothamniella Feldmann, 1978
Holotype species: Rhodothamniella floridula (Dillwyn) Feldmann
Original publication and holotype designation: Christensen, T. (1978). Annotations to a textbook of phycology. Botanisk Tidsskrift 73: 65-70.
Request PDFPrecise date of publication: 31 October 1978
Description: Plants uniseriate filamentous, ecorticate. Cells with several parietal lobed discoid chloroplasts with a central pyrenoid each. Life history with heteromorphic generations; gametophytes minuscule, with a unicellular base, tetrasporophyte larger, heterotrichous. Plants dioecious. Male gametophytes producing a single corymbose cluster of much-branched filaments with terminal spermatangia. Carpogonia mostly pedicellate, but distinct carpogonial filament absent. Carposporophytes and carposporangia absent, the fertilized carpogonium giving rise to the tetrasporophyte directly. Fertilized carpogonium dividing transversely, the apical cell producing a prostrate filament, the latter giving rise to many erect filaments. Tetrasporangia borne in small clusters; division of sporangia cruciate. The single species known from several temperate shores in the southern hemisphere and from the European North Atlantic. Epilithic in lower intertidal and sublittoral fringe. Emended by Saunders in Saunders et al. 1995: 608).
Information contributed by: H. Stegenga. The most recent alteration to this page was made on 2021-09-04 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Saunders, G.W., Jackson, C. & Salomaki, E.D. (2017 '2018'). Phylogenetic analyses of transcriptome data resolve familial assignments for genera of the red-algal Acrochaetiales-Palmariales complex (Nemaliophycidae). Molecular Phylogenetics and Evolution 119: 151-159, 2 fig., 3 tables.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=37298
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 04 September 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 November 2024
