Gulsonia Harvey, 1855
Holotype species: Gulsonia annulata Harvey
Original publication and holotype designation: Harvey, W.H. (1855). Short characters of some new genera and species of algae discovered on the coast of the colony of Victoria, Australia. Annals and Magazine of Natural History, Series 2 15: 332-336, Plate VIII.C.
Request PDFDescription: Thallus to 30 cm, irregularly branched, mucilaginous, axes terete each cell with a whorl of 4 determinate branchlets appearing as nodal bands, corticated below with rhizoidal filaments. Lateral branches borne from outer end of basal cells of determinate branchlets. Pyriform gland cells on cells of determinate branchlets. Procarps on fertile branches along axes each with several 4-celled carpogonial branches of which one matures. Auxiliary cell, cut off from supporting cell, gives rise to carposporophyte with successive rounded groups of carposporangia surrounded by loose involucre of filaments from axial cells below. Spermatangia on terminal cells of determinate branchlets. Tetrasporangia sessile on central cells of determinate branchlets, tetrahedrally divided.
Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 2010-10-06 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: 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: Not common. Described from southern Australia, with a second species from the Mediterranean.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=38806
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 30 December 2024
