163,282 species and infraspecific names are in the database, 22,769 images, 62,920 bibliographic items, 478,454 distributional records.

Platysiphonia Børgesen, 1931

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Delesseriaceae
Subfamily Sarcomenioideae
Tribe Sarcomenieae

Holotype species: Platysiphonia miniata (C.Agardh) Børgesen

Currently accepted name for the type species: Platysiphonia delicata (Clemente) Cremades

Original publication and holotype designation: Börgesen, F. [Børgesen, F.] (1931). Sur Platysiphonia nov. gen. et sur les organes mâles et femelles du Platysiphonia miniata (Ag.) nov. comb. (Sarcomenia miniata (Ag.) J. Ag.). In: Recueil de Travaux Cryptogamiques dédiés à Louis Mangin. (Anon. Eds), pp. 21-29. Paris: Laboratoire de Cryptogamie, Muséum National d'Historie Naturelle.
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Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Díaz-Tapia, P., Pasella, M.M., Verbruggen, H. & Maggs, C.A. (2019). Morphological evolution and classification of the red algal order Ceramiales inferred using plastid phylogenomics. Molecular Phylogenetics and Evolution 137: 76-85, fig. 3.

Taxonomic notes
Borgesen (1931) considers that besides Sarcomenia miniata, the species S. intermedia Grun. and S. mutabilis (Harv.) J. Ag. may belong to the genus Platysiphonia. - (16 Mar 2007) - Wendy Guiry

Description: Thallus erect or with prostrate and erect axes, richly branched; branches compressed, in some species corticated. Structure with 4 pericentral cells; lateral pericentral cells each cutting off 2 flanking cells, these remaining undivided in vegetative parts. Reproduction mostly as for the family. Pericarp with erect filaments each cutting off 2 outer pericentral cells. Spermatangial axes with sterile transverse pericentral cells and flanking cells.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 10 Jul 2019 by M.D. Guiry.

Numbers of names and species: There are 12 species names in the database at present, of which 10 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.

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.

Created: 28 December 2000 by M.D. Guiry

Verified by: 10 July 2019 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33313

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 September 2021.

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