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.
Taxonomic status: currently recognized as a distinct genus.
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.
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 26 Jan 2017 by M.D. Guiry.
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.
Numbers of names and species: There are 19 species names in the database at present, as well as 1 infraspecific names. Of the species names, 9 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):
Click here to also show infraspecific names in the list below.
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: 26 January 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33332
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 June 2019.