Symphyocladia Falkenberg, 1897

Holotype species: Symphyocladia marchantioides (Harvey) Falkenberg

Original publication and holotype designation: Schmitz, F. & Falkenberg, P. (1897). Rhodomelaceae. In: Die natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten insbesondere den Nutzpflanzen unter Mitwirkung zahlreicher hervorragender Fachgelehrten, Teil 1, Abteilung 2. (Engler, A. & Prantl, K. Eds), pp. 421-480. Leipzig: verlag von Wilhelm Engelmann.

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Description: Thalli polysiphonous, bilaterally compressed and with some branches or parts of branches congenitally fused; both upright and prostrate systems, the erect system sometimes mostly decumbent and attaching to substratum by rhizoids cut off from pericentral cells on lower side, each forming multicellular thigmotactic plates. 6-8 pericentral cells, some species with cortication, especially on center of thallus developing indistinct midrib or veins. Deciduous, colorless trichoblasts are present on gametophytes, in a 1/2 spiral; usually absent on sporophytes. Procarps developing at tips of marginal spines, the apices of congenitally fused branches; 1 cystocarp per branch tip. Male capitula cylindrical, developing in place of trichoblasts on tips of branchlets. Tetrasporangia in straight rows, 1 per segment, in marginal regions of fused branches or in teeth from branch edges.

Information contributed by: R.E. Norris. The most recent alteration to this page was made on 2017-01-26 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Savoie, A.M. & Saunders, G.W. (2016). A molecular phylogenetic and DNA barcode assessment of the tribe Pterosiphonieae (Ceramiales, Rhodophyta) emphasizing the Northeast Pacific. Botany 94: 917-939, 8 figs.

Comments: Lower littoral to subtidal, Japan, China, New Zealand, Australia, South Africa the Azores Islands. There are no absolute characters that separate Symphyocladia from Pterosiphonia (Ardré 1973/74) and the two genera may eventually be combined.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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. 26 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 25 June 2024

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