155,558 species and infraspecific names are in the database, 21,916 images, 60,163 bibliographic items, 438,693 distributional records.

Draparnaldiopsis G.M.Smith & Klyver, 1929

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Chaetophorales
Family Chaetophoraceae

Holotype species: Draparnaldiopsis alpina G.M.Smith & Klyver

Original publication and holotype designation: Smith, G.M. & Klyver, F.D. (1929). Draparnaldiopsis, a new member of the algal family Chaetophoraceae. Transactions of the American Microscopical Society 48: 196-203, 1 pl.

Taxonomic status: currently recognized as a distinct genus.

Description: Plants erect, consisting of branched, uniseriate filaments attached by rhizoids. Main axes of cylindrical cells of different length, short cells alternating with longer cells. Short lateral fasicles of secondary branches arise opposite one another or in whorls from short cells on primary axes. Cells of secondary branches cylindrical, inflated or fusiform, with terminal cells narrowly obtuse or bearing long multicellular hairs. Chloroplast band-like or reticulate in main axes, covering entire wall in secondary branches. Cell uninucleate. Reproduction by zoospores often produced in cells of main axes and gametes in those of secondary branches. Zoospores of different sizes larger zoospores quadriflagellate (2 flagella of different length) and smaller biflagellate. Gametes isogameous and biflagellate. Draparnaldiopsis widely distributed in aquatic habitats but comparatively rare (USA, Bangladesh). Recognition of species based on arrangement of short and long cells in main filaments, nature of branching and form of terminal cells.

Information contributed by: D.M. John. The most recent alteration to this page was made on 16 Jul 2012 by Michael Guiry.

Numbers of names and species: There are 8 species names in the database at present, as well as 2 infraspecific names. Of the species names, 8 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.

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.

Created: 11 April 2002 by M.D. Guiry

Verified by: 16 July 2012 by Michael Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43362

Citing AlgaeBase
Please cite this record as:
Michael 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 19 June 2019.

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