Holotype species: Erythrodermis allenii Batters
Currently accepted name for the type species: Erythrodermis traillii (Holmes ex Batters) Guiry & Garbary
Original publication and holotype designation: Batters, E.A.L. (1900). New or critical British marine algae. Journal of Botany, British and Foreign 38: 369-379, pl. 414.
Taxonomic status: currently recognized as a distinct genus.
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.
Monotypic when first introduced. - (23 Jan 2017) - M.D. Guiry
Description: Plants form small, uncalcified crusts anchored apparently without rhizoids and consisting of one to several layers of radiating prostrate filaments. Erect filaments occur only in conjunction with tetrasporangial sori, the tetrasporangia being borne in terminal or intercalary chains. Gametophytes are unknown.
Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 23 Jan 2017 by M.D. Guiry.
Comments: Dixon and Irvine (1977) have placed this problematic genus in the Phyllophoraceae because of the catenate tetrasporangia. The independent status of Erythrodermis is doubtful, especially with the studies of DeCew and West (1981) and Masuda (1987) showing that Gymnogongrus species in California and Japan produce Erythrodermis-like tetrasporophytes. Distribution: The type species is apparently restricted to subtidal hard substrata in southern England. A second species, E. Pacifica Hollenberg, grows subtidally in the Puget Sound of western North America.
Numbers of names and species: There are 4 species names in the database at present, of which 3 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.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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: 23 January 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=37721
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 March 2019.