Fredericqia, L.Le Gall, Mineur, Provan & G.W. , 2013
Original publication and holotype designation: Maggs, C.A., Le Gall, L., Mineur, F., Provan, J. & Saunders, G.W. (2013). Fredericqia deveauniensis, gen. et sp. nov. (Phyllophoraceae, Rhodophyta), a new cryptogenic species. Cryptogamie Algologie 34: 273-296.
Taxonomic status: currently recognized as a distinct genus.
Description: Thalli multiaxial, erect gametophytic blades up to 300 mm long, terete or compressed, with compact cortex and pseudoparenchymatous medulla, monoecious or dioecious; procarpic, carpogonial branch 3-celled with one sterile cell on the basal cell; cystocarps developing as compound gonimoblasts with cells fusing to differentiated medullary cells, forming multiple carpostomes through the thickened cortex; sporophytes either crustose, Erythrodermis-like, with strongly cohesive cuboid cells, forming cruciate tetrasporangia in catenate rows in an intercalary position, or consisting of carpotetrasporophytes protruding externally from the gametophyte.
Origin of description: this description is from the original publication; it may have been modified slightly.
Numbers of names and species: There are 3 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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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: 02 November 2013 by M.D. Guiry
Verified by: 15 March 2017 by Paul Gabrielson
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=51527
Please cite this record as:
Paul Gabrielson in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 April 2019.