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.

Request PDF

Type designated in: Hazen, T.E. (1902). The Ulothricaceae and Chaetophoraceae of the United States. Memoirs of the Torrey Botanical Club 11(2): 135-250, plates 20-42.

Request PDF

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 2023-06-26 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

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.

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.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=43361

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 26 June 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024