155,120 species and infraspecific names are in the database, 21,784 images, 59,951 bibliographic items, 433,854 distributional records.

Dilabifilum Tschermak-Woess, 1971

Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Ulvophyceae
Order Ulvales
Family Kornmanniaceae

Holotype species: Dilabifilum arthropyreniae (Vischer & Klement) Tschermak-Woess

Currently accepted name for the type species: Pseudendoclonium arthopyreniae (Vischer & Klement) Darienko & Pröschold

Original publication and holotype designation: Tschermak-Woess, E. (1971 '1970'). Über wenig bekannte und neue Flechtengonidien V Der Phycobiont von Verrucaria aquatilis und die Fortpflanzung von Pseudopleurococcus arthopyreniae. Österreichische Botanische Zeitschrift 118: 443-455.

Taxonomic status: currently regarded as a synonym of Pseudendoclonium.

Most recent taxonomic treatment adopted: Darienko, T. & Pröschold, T. (2017). Toward a monograph of non-marine Ulvophyceae using an integrative approach (Molecular phylogeny and systematics of terrestrial Ulvophyceae II.). Phytotaxa 324(1): 1-41, 23 figs.

Taxonomic notes
Ulvales: in clade, sister to a lineage including Kornmannia and Blidingia (Thüs et al. 2011). Thüs et al. (2011: 411) note that Friedl & Büdel (2008) showed that Dilabifilum arthropeniae belonged to the Ulvales (Ulvophyceae). See also Bulova et al. (2011). - (8 Feb 2012) - Wendy Guiry

Habitat notes
Phytobiont of Verrucariaceae (Thüs et al. 2011). - (8 Feb 2012) - Wendy Guiry

Description: Plants formed of uniseriate filaments. Primary filament prostrate, arising by unipolar or, more rarely, bipolar spore germination, and bearing many erect or secondary branches that produce laterals. Cells cylindrical in younger filaments but swelling to form akinetes in ageing cultures especially on agar where alga develops as dark green mass of coccoid cells. Cells uninucleate with single parietal chloroplast and pyrenoid. Asexual reproduction by aplanospores formed 16 or 32 per cell, and quadriflagellate zoospores, both spore types formed in swollen intercalary cells. Sexual reproduction unknown. Dilabifilum isolated from various surfaces (e.g. lichens, mollusc shells, calcareous crusts, stones) collected in freshwater and marine (intertidal) habitats; more frequently recorded from the former. Only reported from Europe. A report of sporangia and quadriflagellate zoospores in cultures of type species not confirmed during more recent examination of strain of the type species. Asexual reproduction unknown in two other species placed in this rather ill-defined genus. Uncertainty surrounds placement in Dilabifilum of the two species for which motile stages are unknown. Ultrastructural information lacking for all three species. Taxonomy culture-based with species distingushed principally on the form of the thallus of plants grown under carefully defined conditions.

Information kindly contributed by D.M. John but may now be outdated.

Numbers of names and species: There are 4 species names in the database at present.

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.

Thüs, H., Muggia, L., Pérez-Ortega, S., Favero-Longo, S.E., Joneson, S., O'Brien, H., Nelsen, M.P., Duque-Thüs, R., Grube, M., Friedl, T., Brodie, J., Andrew, C.J., Lücking, R., Lutzoni, F. & Gueidan, C. (2011). Revisiting photobiont diversity in the lichen family Verrucariaceae (Ascomycota). European Journal of Phycology 46(4): 399-415.

Burova, O.V., Tsarenko, P.M., Kovalenko, O.V., Petlovany, O.A., Mikhailyuk, T.I. & Lilitska, G.G. (2011). Chaetophorales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 264-278. Ruggell: A.R.A. Gantner Verlag K.-G.

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: 28 December 2000 by M.D. Guiry

Verified by: 09 October 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=38296

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 April 2019.

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