Diplothamnion A.B.Joly & Yamaguishi, 1966

Holotype species: Diplothamnion tetrastichum A.B.Joly & Yamaguishi

Original publication and holotype designation: Joly, A.B., Cordeiro, M., Yanaguishi, N. & Ugadim, Y. (1966 '1965'). Additions to the marine flora of Brazil IV. Rickia 2: 129-145.

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Description: Thallus filamentous, ecorticate, primarily decumbent with erect apical regions. Lateral branches 2 per axial cell, opposite, with a slight or marked rotation between successive pairs. Determinate lateral branches slightly curved, dichotomously branched. Indeterminate lateral branches arising in place of determinate laterals. Spermatangia in heads on the distal ends of lateral branch cells. Procarps subapical on short fertile axes. Carposporophytes terminal, with inner and outer involucral branches. Tetrasporangia tetrahedral, solitary on the distal ends of lateral branch cells.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 2018-10-10 by M.D. Guiry.

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

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.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=40318

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 10 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 28 April 2024