Holotype species: Haloplegma duperreyi Montagne
Original publication and holotype designation: Montagne, C. (1842). Troisième centurie de plantes cellulaires exotiques nouvelles. Décades V, VI, VII et VIII. Annales des Sciences Naturelles, Botanique, Seconde Série 18: 241-282, pl. 7.
Precise date of publicationNov 1842
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Wynne, M.J. & Schneider, C.W. (2010). Addendum to the synoptic review of red algal genera. Botanica Marina 53: 291-299.
Huisman (2018: 607) notes: "...from the Greek halo (the sea) and plegma (weaved), in reference to the habitat and structure of the alga." - (10 Oct 2018) - M.D. Guiry
Description: Thallus erect or decumbent, with flattened felt-like spongy branched blades; structure with a layered network formed by parallel ecorticate filaments, the cells of which each bear lateral determinate branchlets that anastomose to form a net. Outer surface with short perpendicular or elongate and curved filaments bearing reproductive structures. Cells multinucleate. Spermatangia in subcylindrical heads. Carpogonial branches borne on short branches on cells of surface clusters. Carposporophytes globose, with several successively developing gonimolobes composed entirely of carposporangia, involucrate. Tetrasporangia terminal, tetrahedrally divided, occasionally forming octosporangia.
Information contributed by: Huisman (2018). The most recent alteration to this page was made on 12 Jun 2019 by M.D. Guiry.
Comments: Widespread in warm and temperate seas.
Numbers of names and species: There are 7 species names in the database at present, as well as 4 infraspecific names. Of the species names, 5 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.
Wynne, M.J. & Schneider, C.W. (2010). Addendum to the synoptic review of red algal genera. Botanica Marina 53: 291-299.
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: 01 January 2001 by M.D. Guiry
Verified by: 12 June 2019 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=35397
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 29 July 2021.