Wilsonaea F.Schmitz, 1893

Holotype species: Wilsonaea dictyuroides (J.Agardh) F.Schmitz

Original publication and holotype designation: Schmitz, F. (1893). Die Gattung Lophothalia J. Ag. Berichte der deutsche botanischen Gesellschaft 11: 212-232.

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Description: Erect thallus, up to 15 cm high, polysiphonous with 5 pericentral cells, radially oriented, exogenous branches, irregularly spaced, many of which remain short, forming axes of highly branched laterals forming plume-like, tufted branches on the axes; some short branches may later develop indeterminate growth. Branchlets in 1/4-1/3 spirals on axes; determinate laterals terminating segments with 4 pericentrals, some becoming monosiphonous at apex. Pericentral cells dividing in tiers, the proximal cell in tier maintaining pit connection with axial cell; pericentral cells and derivatives also forming exterior cortication. Tetrasporangial stichidia on short branchlets, with polysiphonous stalks, cylindrical but somewhat bent and monosiphonous apices; 4 sporangia per fertile segment. Gametophytes unknown.

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: Rare, subtidal in southern Australia.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=42885

Citing AlgaeBase
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 12 December 2024