Ulothrix mucosa Thuret 1850
Publication Details
Ulothrix mucosa Thuret 1850: 223, pl. 18: figs 8-11
Published in: Thuret, G. (1850). Recherches sur les zoospores des algues et les anthéridies des cryptogames. Annales des Sciences Naturelles, séries 3, Botanique 14: 214-260, pls 16-31.
Request PDFType Species
The type species (holotype) of the genus Ulothrix is Ulothrix tenuissima Kützing.
Status of Name
This name is of an entity that is currently accepted taxonomically.
General Environment
This is a freshwater species.
Created: 27 June 2008 by Salvador Valenzuela Miranda.
Last updated: 20 March 2020
Verification of Data
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Nomenclatural notes
Freshwater, in standing waters. - (15 March 2018) - M.D. Guiry
"Not a diagnosis" (INA). Thuret (1850L 223) has "Je crois pouvoir rapporter au même genre une petite Conferve que j'ai trouvée plusieurs fois dans les eaux dormantes, et que je nommerai Ulothrix mucosa, à cause de l'enveloppe muqueuse qui la distingue. Ici les zoospores sont solitaires dans chaque article : à mesure qu'ils s'échappent, le filament se dissout et disparaît. Quand la germination commence, il se forme à la base des jeunes plantes un petit épatement mucilagincux, qui les rend fortement adhérentes au point où elles sont implantées. Les filaments de cette espèce et de tous les autres Ulothrix ont un as- pect très différent, suivant qu'on les examine avant ou après la formation des zoospores, et il faut pouvoir en suivre les divers états, pour s'assurer qu'on n'a point affaire à plusieurs espèces." [I think I can relate to the same genus a little Conferve, which I have found several times in the dormant waters, and which I will call Ulothrix mucosa, because of the mucous envelope which distinguishes it. Here the zoospores are solitary in each article: as they escape, the filament dissolves and disappears. When germination begins, a small mucilaginous swelling is formed at the base of the young plants, which makes them strongly adherent to the point where they are implanted. The filaments of this and all other Ulothrix species have a very different aspect, according to whether they are examined before or after the formation of the zoospores, and it is necessary to be able to follow the different states, to make sure that we are not dealing with several species.] This may indicate a certain provisional nature to the name. - (26 August 2011) - G.M. Guiry
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 March 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 01 June 2025
