Antrocentrum& Min-Thein, 1983
Holotype species: Antrocentrum nigrescens (Harvey) Kraft & Min-Thein
Original publication and holotype designation: Kraft, G.T. & Min-Thein, U. (1983). Claviclonium and Antrocentrum, two new genera of Acrotylaceae (Gigartinales, Rhodophyta) from southern Australia. Phycologia 22: 171-183, 35 figs.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Kraft, G.T. & Saunders, G.W. (2021). The Acrotylaceae (Gigartinales) revisited: molecular data indicate family-level differencen in one of the most enigmatic red-algal families. Australian Systematic Botany 34(3): 305-326, 13 fig., 1 table.
Description: Plants reach 20 cm in length, are epiphytic or epilithic, grow from a basal cluster of fibers and stolons, and are terete, irregularly radially branched, and generally mostly hollow. Axes are uniaxial, the axial cells each giving rise to 2 periaxial fascicles, but central axes are traceable only in very young branch tips. The medulla fills most of the cross-section and is very laxly filamentous, the medullary filaments giving rise abruptly to one or two inner cortical layers of large subisodiametric cells bearing 1-2 outer cortical layers in a pattern of rosettes. Supporting cells are monocarpogonial, and carpogonial branches are 3-celled. Gonimoblasts line a cavity bordered by nutritive filaments, the cystocarps being entirely embedded in the axes and communicating to the surface by a rupture in the cortex. Carposporangia are single and terminal. Tetrasporangia are dispersed through the outer cortex and are attached.
Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 18 Jun 2021 by M.D. Guiry.
Comments: Distribution: Plants grow on open coasts from low intertidal to at least 18 m depths; endemic to Australia, recorded from the Perth region (Western Australia) eastward to eastern Victoria and the northern coast of Tasmania.
Numbers of names and species: There are 3 species names in the database at present, of which 3 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..
Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
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Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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.
Created: 28 December 2000 by M.D. Guiry
Verified by: 18 June 2021 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=39892
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 June 2021.