Draparnaldia Bory, 1808
Lectotype species: Draparnaldia mutabilis (Roth) Bory
Original publication:Bory de Saint-Vincent, [J.B.G.M.] (1808). Mémoire sur le genre Draparnaldia, de la famille des Conferves (Voyez la planche 35).. Annales du Muséum d'Histoire Naturelle 12: 399-409, pls 35.
Type designated in Hazen, T.E. (1902). The Ulothricaceae and Chaetophoraceae of the United States. Memoirs of the Torrey Botanical Club 11: 135-250.
Taxonomic status: currently recognized as a distinct genus.
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.
Description: Plants erect or decumbent, branched; filaments uniseriate, embedded in soft mucilagenous envelope, attached by rhizoids; rhizoids either basal or from different parts of filaments, branched or simple, hyaline; main axis of large barrel–shaped, cylindrical, rectangular or doliform cells; cells of similar size or short (nodal) and long (internodal) mixed, sometimes alternately arranged, uninucleate; chloroplast large, parietal, band-shaped, entire or perforate reticulate with smooth or laciniate margin, and with several pyrenoids; branches both determinate and indeterminate, arise at junction of two cells (on septa/cross wall) or from median part of cells or from anywhere of cells, sometimes from short nodal cells only; determinate branches 1–several, opposite or often in fascicles, either with primary axis or 2–polychotomy fashion; terminal cells narrowly obtuse, bluntly pointed or bearing long multicellular hair; indeterminate branches repeat the structure of main branches with comparatively smaller cells; asexual reproduction: zoospores often produced in cells of main axis, either similar size and biflagellate or two types, larger quadriflagellate and smaller biflagellate; thick-walled aplanospores often formed; sexual reproduction: isogamous with biflagellate or quadriflagellate gametes.
Information contributed by: Mandal & Maity (2019: 310). The most recent alteration to this page was made on 8 May 2020 by M.D. Guiry.
Numbers of names and species: There are 48 species names in the database at present, as well as 14 infraspecific names. Of the species names, 25 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.
Caisová, L., Marin, B., Sausen, N., Proschold, T. & Melkonian, M. (2011). Polyphyly of Chaetophora and Stigeoclonium within the Chaetophorales (Chlorophyceae), revealed by sequence comparisons of nuclear-encoded SSU rRNA genes. Journal of Phycology 47(1): 164-177.
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: 11 April 2002 by M.D. Guiry
Verified by: 08 May 2020 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43361
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 05 December 2020.