Chondria C.Agardh, 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, [1]-135. Lundae [Lund]: Ex officina Berlingiana.
Request PDFDescription: 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 2018-10-08 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
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.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=32787
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024
