Osmundaria J.V.Lamouroux, 1813
Holotype species: Osmundaria prolifera J.V.Lamouroux
Original publication and holotype designation: Lamouroux, J.V.F. (1813). Essai sur les genres de la famille des Thalassiophytes non articulées. Annales du Muséum d'Histoire Naturelle 20: 21-47, 115-139, 267-293, plates 7-13.
Description: Thalli ligulate, up to 50 cm long, 1 cm broad, branched from margins or midrib, with characters similar to those of Vidalia but with blade surfaces often densely covered on both sides by adventitious branchlets which are branched and up to ~1 mm long. Tetrasporangial stichidia on cylindrical branchlets occurring on edges of distal serrations; 2 sporangia per segment forming 2 rows in the stichidium which is somewhat flattened, curved distally and dorsiventrally oriented sometimes with dorsal trichoblasts or scar cells.
Information contributed by: R.E. Norris. The most recent alteration to this page was made on 2010-10-07 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.
Comments: Subtidal in southern and Western Australia. Analyses of species of Vidalia compared with Osmundaria strongly suggest that the two genera should not remain separate.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=42517
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 30 November 2023