Halosacciocolax Edelstein, 1972
Holotype species: Halosacciocolax lundii Edelstein
Currently accepted name for the type species: Rhodophysema lundii (Edelstein) C.W.Schneider & M.J.Wynne
Original publication and holotype designation: Edelstein, T. (1972). Halosacciocolax lundii, sp. nov., a new red alga parasitic on Rhodymenia palmata (L.) Grev.. British Phycological Journal 7: 249-253.
Request PDFPrecise date of publication: 31 Aug 1959
Description: Thallus forming hemispherical apparently parasitic pulvinate growths 0.5-1.0 mm in diameter on the hollow fronds of Palmaria and Devaleraea. Branched, endophytic filaments giving rise to surface growths of radiating prostrate filaments forming branched erect filaments. Spermatangia formed hyperparasitically on tetrasporangial plants on clavate mother cells terminating erect filaments; carpogonia and cystocarps unknown. Life history unknown. Tetrasporangia formed terminally on erect filaments, regenerating occasionally from the vegetative cell immediately below, generative stalk cells absent; paraphyses between tetrasporangia generally absent. Spores regularly cruciately to irregularly arranged.
Information kindly contributed by M.D. Guiry but may now be outdated.
Taxonomic status: This name is currently regarded as a synonym of Rhodophysema.
Gender: This genus name is currently treated as masculine.
Most recent taxonomic treatment adopted: Clayden, S.L. & Saunders, G.W. (2010). Recognition of Rubrointrusa membranacea gen. et comb. nov., Rhodonematella subimmersa gen. et comb. nov. (with a reinterpretation of the life history) and the Meiodiscaceae fam. nov. within the Palmariales (Rhodophyta). Phycologia 49(3): 283-300.
Comments: Halosacciocolax lundii Edelstein (1972) was originally described as a smaller and lighter-coloured entity than Halosacciocolax kjellmanii Lund, nom. inval., is now considered to represent one species (Guiry, 1975). The species is found rarely in the N. Atlantic and N. Pacific on various species of Palmaria and Devaleraea. The endophytic, slightly brown filaments described by Guiry (1974, 1975) penetrating the cortical cells of Palmaria are not typical of red algal parasites and would repay fine-structural studies. A superficially similar, apparently parasitic species, Neohalosacciocolax aleutica I.K. Lee (q.v.), has been described from Halosaccion minjaii I.K. Lee from the Aleutian Islands. Neohalosacciocolax forms obvious generative stalk cells in the tetrasporangia, sterile filaments between them, and spermatangia are formed in pairs terminally on filaments
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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=37658
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 August 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 April 2024
