Chondria C., 1817, nom. cons.
Holotype species: Chondria tenuissima (Withering) C.Agardh
Currently accepted name for the type species: Chondria capillaris (Hudson) M.J.Wynne
Original publication and holotype designation: Agardh, C.A. (1817). Synopsis algarum Scandinaviae, adjecta dispositione universali algarum. pp. [i]-xl, -135. Lundae [Lund]: Ex officina Berlingiana.
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.
Description: Thallus erect, decumbent or prostrate, frequently epiphytic; branching variable, irregular or paniculate with percurrent axes. Axes terete or compressed, the minor branches often clavate or tapering, in many species markedly constricted at the bases of lateral branches. Apices either truncate, enclosed in a pit, or projecting, usually with emergent trichoblasts. Structure with 5 pericentral cells that are obvious in transverse sections, surrounded by a loose pseudoparenchymatous inner cortex and a surface layer of ovoid to rectilinear cells; pericentral and inner cortical cells can be thickened noticeably along transverse walls in rings, or in caps at proximal and/or distal poles; some species without wall thickenings. Spermatangia borne near apices in plate-like discs with sterile-celled margin. Cystocarps large, basally rotund, usually broadly ostiolate; carposporophyte with a large fusion cell. Tetrasporangia formed within cortical layers near apices of unmodified branches.
Information contributed by: J.M. Huisman (2018).. The most recent alteration to this page was made on 8 Oct 2018 by M.D. Guiry.
Numbers of names and species: There are 146 species names in the database at present, as well as 27 infraspecific names. Of the species names, 79 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: 29 December 2000 by M.D. Guiry
Verified by: 26 January 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32787
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 November 2018.