Glandothamnus Wollaston, 1981

Holotype species: Glandothamnus ramulentus Wollaston

Currently accepted name for the type species: Pterothamnion ramulentum (Wollaston) Athanasiadis & Kraft

Original publication and holotype designation: Wollaston, E.M. (1981 '1980'). Descriptions of two new genera, Scageliopsis and Glandothamnus (Ceramiaceae, Rhodophyta), including five previously undescribed species from Southern Australia. Pacific Science 34(2): 109-127, 43 figs.

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Description: Thallus erect, axial cells with whorls of (2-)3-4 near-equal determinate branchlets often unilaterally initiated at branch apices. Gland cells lateral on branchlet cells, usually prominent and elongated obliquely to parent cell.Procarps with 1-3 4-celled carpogonial branches borne on basal cells of branchlets near apices, axes continuing to elongate by lateral branches from axial cell below fertile branchlet. Auxiliary cell, cut off from supporting cell, leads to carposporophyte with several successive rounded groups of carposporangia. Spermatangial clusters on determinate branchlets. Tetrasporangia cruciately or tetrahedrally divided.

Information kindly contributed by E.M. Wollaston but may now be outdated.

Taxonomic status: This name is currently regarded as a synonym of Pterothamnion.

Most recent taxonomic treatment adopted: Athanasiadis, A. (1996). Morphology and classification of the Ceramioideae (Rhodophyta) based on phylogenetic principles. Opera Botanica 128: [1]-216, 108 figs.

Comments: Recorded only from southern Australia. Relationship with Scagelia (northern hemisphere) and Platythamnion recognized. Includes Antithamnion plumula sensu May 1946, non A. plumula (Ellis) Thuret from northern hemisphere.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 October 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 27 February 2024

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