Rhizonema Lücking & Barrie, 2014
Holotype species: Rhizonema interruptum Lücking & Barrie
Original publication and holotype designation: Lücking, R., Barrie, F.R. & Genney, D. (2014). Dictyonema coppinsii, a new name for the European species known as Dictyonema interruptum (Basidiomycota: Agaricales: Hygrophoraceae), with a validation of its photobiont Rhizonema (Cyanoprokariota: Nostocales: Rhizonemataceae). The Lichenologist 46(3): 261-267, 1 fig.
Request PDFDescription: Differing from Scytonema in the formation of true branching of the T type and the possibly exclusively lichenized biological lifestyle.
Information contributed by: Oriignal description.. The most recent alteration to this page was made on 2023-03-06 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as neuter.
Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.
Comments: Filamentous or broken into irregular clusters of rounded cells. Trichomes isopolar, uniseriate, cylindrical, formed by rectangular cells with blue-green to olive-green pigmentation embedded in a thin, dense, gelatinous, hyaline or brownish sheath; terminal cells smaller and often yellow rather than blue-green but not rounded or hair-like. Branching rare, representing true branching of T or akin towards V type, with the division plane periclinal or slightly oblique. Heterocytes frequent, intercalary. Asexual reproduction rare, by hormogonia and akinetes.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=52644
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 20 May 2024
