Boreothamnion M.J.Wynne, 1980

Holotype species: Boreothamnion villosum M.J.Wynne

Original publication and holotype designation: Wynne, M.J. (1980). Boreothamnion (Ceramiaceae, Ceramiales), a new red algal genus from Alaska. Contributions from the University of Michigan Herbarium 14: 209-219.

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Description: hallus robust, axis monopodial, irregularly and distichously branched, each cell with 4(3) determinate branchlets in 2 unequal pairs. Each branchlet pinnately or quaternately branched from central rachis. Indeterminate axes corticated except at branch apices with rhizoidal filaments borne on basal cells of determinate branchlets. Cells uninucleate. Gland cells lacking. Sexual plants unknown. Tetrasporangia, with or without stalk cells, tetrahedrally-divided. Boreothamnion shares some features with each of several tribes of Ceramiaceae but, until female reproductive features are known, is tentatively placed in Ptiloteae due to its resemblance to Tokidaea in several features.

Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 2015-01-04 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Comments: Recorded from Amchitka Island, the Aleutians, Alaska, U.S.A.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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. 04 January 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 21 March 2023

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