Platysiphon R.T.Wilce, 1962
Holotype species: Platysiphon verticillatus R.T.Wilce
Publication details: R.T.Wilce, 1962: 36
Currently accepted name for the type species: Platysiphon glacialis (Rosenvinge) H.Kawai & T.Hanyuda
Original publication and holotype designation: Wilce, R.T. (1962). A new member of the Punctariaceae: Platysiphon verticillatus gen. nov., sp. nov. Botanisk Tidsskrift 58: 35-42.
Description: The parenchymatous macrothallus is up to 2.5 cm high, consisting of a stipe, a somewhat expanded region and a long attenuated tip. The attenuated tip with assimilatory filaments arranged in whorls at regular intervals. True phaeophycean hairs are apparently absent. This genus is based on sterile material collected in Inglefield Bay, Thule district, West Greenland.
Information kindly contributed by P. M. Pedersen but may now be outdated.
Taxonomic status: This name is currently regarded as a synonym of .
Gender: This genus name is currently treated as masculine.
Most recent taxonomic treatment adopted: Kawai, H., Hanyuda,T., Yamagishi, T., Kai, A., Lane, C.E., Mc Devit, D., Küpper, F.C. & Saunders, G.W. (2015). Reproductive morphology and DNA sequences of the brown alga Platysiphon verticillatus support the new combination Platysiphon glacialis. Journal of Phycology 51(5): 910-917.
Taxonomic notes
Chordariaceae (Silbefeld et al., 2014). - (03 May 2017) - G.M. Guiry
According to Wilce & Badley (2019), P. verticillatus and P. glacialis should not be synonymized. - (04 November 2019) - G.M. Guiry
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=38139
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 March 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 18 May 2025
