Draparnaldiopsis G.M.Smith & Klyver, 1929

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

Currently accepted name for the type species: Draparnaldia alpina (G.M.Smith & Klyver) Manasi Mandal & D.Maity

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.

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Information kindly contributed by D.M. John but may now be outdated.

Taxonomic status: This name is currently regarded as a synonym of Draparnaldia.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Mandal, M. & Maity, D. (2019). Taxonomy of Draparnaldia Bory and Draparnaldiopsis G.M. Sm. and Klyver (Chaeophoraceae): recircumscription, new species, new combinations and nomen novum. Feddes Repertorium 130(3): 302-312, 3 fig., 1 table.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 15 May 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 April 2024