Holotype species: Pseudendoclonium submarinum Wille
Original publication and holotype designation: Wille, N. (1901). Studien über Chlorophyceen. I-VII. Skrifter Udgivne af Videnskabs-selskabet i Kristiania. Mathematisk-naturvidenskabelig Klasse 1900(6): 1-46, pls I-IV [168 figs].
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe. Bd 13. Chlorophyta: Ulvophyceae (Krienitz, L. ed.). pp. [i]-vii, -288, 182 figs. Berlin: Springer Spektrum.
Description: Plants heterotrichous, consisting of uniseriate, irregularly branched filaments, with prostrate filaments sometimes very dense and pseudoparenchymatous. Cells with single parietal chloroplast and a pyrenoid. Asexual reproduction various. Swollen cells produce 4 or 8 ovoid, quadriflagellate zoospores. Aplanospores and zoospores often produced in 2 or 4-celled sarcinoid packets of swollen cells, pleurococcoid in appearance. Akinetes also produced. Sexual reproduction unknown. Pseudendoclonium isolated from various surfaces collected in freshwater and marine habitats, occasionally from soil. All the freshwater species described from isolates studied in laboratory culture. Characters used to distinguish species include dimensions of cells, discernability of original primary filament in mature plants, degree of development of branching systems, relative development of erect and prostrate systems, and whther prostrate axes become secondarily erect. Zoospore ultrastructure studied in several species. Square or diamond-shaped surface scales present on zoospores of P. basiliense var. brandii and P. akinetum but absent on the marine species P. submarinum. In this latter species a basal body lies perpendicular to long axis of zoospore, whereas configuration in P. akinetum is V-shaped. Inconsistencies in ultrastructural features of the few investigated species inevitably casts doubt on whether the genus represents a natural grouping. Fine structural details of flagellated stage suggest possible affinities with Ulotrichales.
Information contributed by: D.M. John. The most recent alteration to this page was made on 14 Mar 2018 by M.D. Guiry.
Numbers of names and species: There are 16 species names in the database at present, as well as 5 infraspecific names. Of the species names, 10 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.
Cambra Sánchez, J., Álvarez Cobelas, M. & Aboal Sanjurjo, M. (1998). Lista florística y bibliográfica de los clorófitos (Chlorophyta) de la Península Ibérica, Islas Baleares e Islas Canarias. pp. 1-614. Burgos: Asociación Española de Limnología.
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: 14 March 2018 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32812
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 23 September 2018.