Lesueuria Woelkerling & Ducker, 1987

Holotype species: Lesueuria minderiana Woelkerling & Ducker

Original publication and holotype designation: Woelkerling, W.J. & Ducker, S.C. (1987). Lesueuria minderiana gen. et sp. nov. (Corallinaceae, Rhodophyta) from southern and western Australia. Phycologia 26: 192-204, 24 figs, 1 table.

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Description: Thalli comprising endophytic vegetative filaments and emergent conceptacles. Vegetative filaments partially unconsolidated and lacking epithallial cells. Cells in contiguous filaments sometimes joined by fusions; secondary pit-connections lacking. Trichocytes unknown. Reproductive cells forming within uniporate conceptacles. Conceptacle roofs produced by overarching peripheral filaments ending in epithallial cells with rounded outer walls. Columella present; tetrasporangia in surrounding ring. Bisporangia lacking. Apical sporangial plugs absent. Separate gametangial conceptacles containing carpogonia and simple spermatangia on chamber floor.

Information contributed by: H.W. Johansen. The most recent alteration to this page was made on 2020-06-02 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: Peña, V., Vieira, C., Braga, J.C., Aguirre, J., Rösler, A., Baele, G., De Clerck, O. & Le Gall, L. (2020). Radiation of the coralline red algae (Corallinophycidae, Rhodophyta) crown group as inferred from a multilocus time-calibrated phylogeny. Molecular Phylogenetics and Evolution 150(106845): 1-19, 5 figs.

Comments: Reported only on the coralline Metagoniolithon chara from western and southern Australia as deep as 8 m. Lesueuria stands apart from other genera in the Mastophoroideae because of its endophytic habit, diffuse organization of filaments, and haustoria.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=39416

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 02 June 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024