Porphyridium griseum Geitler 1970
Publication Details
Porphyridium griseum Geitler 1970: 24, fig. 3
Published in: Geitler, L. (1970). Beiträge zur epiphytischen Algenflora des Neusiedersees. Österreichische Botanische Zeitschrift 118(1-2): 17-29, 3 figures.
Request PDFPublication date: 1970
Type Species
The type species (holotype) of the genus Porphyridium is Porphyridium cruentum (S.F.Gray) Nägeli.
Status of Name
This name is currently regarded as a synonym of Dixoniella grisea (Geitler) J.L.Scott, S.T.Broadwater, B.D.Saunders, J.P.Thomas & P.W.Gabrielson.
Source of Synonymy
Scott, J.L., Broadwater, S.T., Saunders, B.D. & Thomas, J.P. (1992). Ultrastructure of vegetative organization and cell division in the unicellular red alga Dixoniella grisea gen. nov. (Rhodophyta) and a consideration of the genus Rhodella. Journal of Phycology 28: 649-660.
Type Information
Type locality: Illmitz, Seerestaurant, in lacu Peisonis [Neusiedl am See in Burgenland in Austria]; (Scott, Broadwater, Saunders & Thomas 1992: 650) Holotype: Chicago Natural History Museum; (Scott, Broadwater, Saunders & Thomas 1992: 650)
Origin of Species Name
Adjective (Latin), grey, pearl-grey, pure grey tending a little to blue (Stearn 1983).
General Environment
This is a freshwater species.
Created: 26 April 2002 by M.D. Guiry.
Last updated: 15 August 2024
Verification of Data
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Taxonomic note
Necchi & Vis (2021: 44) note "A fourth species of Porphyridium (P. griseum Geitler) has been recognized in some general treatments (Kumano 2002; Eloranta et al. 2011). However, there is no molecular or morphological evidence to support the recognition of this species. It is described as having grayish cells, but this could be only a variation within the color spectrum of other species, particularly P. sordidum that could have gray-green cells. Thus, we decided to place it provisionally as a doubtful species until further information is provided to define its taxonomic status." - (30 March 2022) - M.D. Guiry
Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=46912
Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 15 August 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 01 April 2025
