Sphaerocystis signiensis Broady 1976
Publication Details
Sphaerocystis signiensis Broady 1976: 396, 397, fig. 4
Published in: Broady, P.A. (1976). Six new species of terrestrial algae from Signy island, South Orkney Islands, Antarctica. British Phycological Journal 11(4): 387-405, 7 figs, 5 tables.
Request PDFType Species
The type species (holotype) of the genus Sphaerocystis is Sphaerocystis schroeteri Chodat.
Status of Name
This name is currently regarded as a synonym of Radiococcus signiensis (P.A.Broady) I.Kostikov, T.Darienko, A.Lukesová, & L.Hoffmann.
Type Information
Type locality: Signy Island, South Orkney Islands, Antarctica; (Broady 1976: 397) Holotype: 4 a-k: 1972; terrestrial mosses ; Cambridge Collection of Algae and Protozoa; Culture No.176/3 (Broady 1976: 397)
Description
Spherical, rarely broadly ellipsoidal, unicells, up to 15 µm diam. distributed throughout
softly mucilaginous, multicellular, irregular, dark green colonies in two, four and rarely eight
cell groups, or irregularly arranged. Occasionally with a faint structuring of the mucilage
around cells and cell groups. Adult cells with a thin, smooth cell wall, and a single, often lobed,
parietal, green chromatophore with a readily visible basal pyrenoid, and a single nucleus. Oil
globules often present. Autosporangia release two, four rarely eight spores by the irregular
rupture of the wall, fragments of which being often visible, or gelatinizing. Spores spherical or
broadly ellipsoidal, 4.5-7 µm diam.
Created: 27 April 2004 by Fabio Rindi.
Last updated: 05 July 2023
Verification of Data
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=62717
Citing AlgaeBase
Cite this record as:
Luka Sato in Guiry, M.D. & Guiry, G.M. 05 July 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 May 2025
