160,994 species and infraspecific names are in the database, 22,718 images, 62,600 bibliographic items, 473,223 distributional records.

Polysiphonia johnstonii Setchell & Gardner 1924

Publication details
Polysiphonia johnstonii Setchell & Gardner 1924: 767

Published in: Setchell, W.A. & Gardner, N.L. (1924). XXIX Expedition of the California Academy of Sciences to the Gulf of California in 1921. The marine algae. Proceedings of the California Academy of Science, Fourth Series 12(29): 695-949, pls 12-88, map.
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Publication date: "May 13, 1924"

Type species
The type species (holotype) of the genus Polysiphonia is Polysiphonia urceolata (Lightfoot ex Dillwyn) Greville.

Status of name
This name is currently regarded as a synonym of Melanothamnus johnstonii (Setchell & N.L.Gardner) Díaz-Tapia & Maggs

Type information
Type locality: San Esteban Island, Gulf of California (Setchell & Gardner 1924: 767). Type: Ivan M. Johnston (no. 110); April; Growing on Gracilaria sp.. Herb. Calif. Uni. Sci. 1361 (Setchell & Gardner 1924: 767). Notes: CAS 1361 in UC; iv.1921 (Díaz-Tapia, 2017).

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
This is a marine species.

Detailed distribution with sources (Click to Load)

Source of current name
Díaz-Tapia, P., McIvor, L., Freshwater, D.W., Verbruggen, H., Wynne, M.J. & Maggs, C.A. (2017). The genera Melanothamnus Bornet & Falkenberg and Vertebrata S.F. Gray constitute well-defined clades of the red algal tribe Polysiphonieae (Rhodomelaceae, Ceramiales). European Journal of Phycology 52(1): 1-20, 77 figs.

Key references
Abbott, I.A. & Hollenberg, G.J. (1976). Marine algae of California. pp. [i]-xii, 1-827, 701 figs. Stanford, California: Stanford University Press.

Setchell, W.A. & Gardner, N.L. (1924). XXIX Expedition of the California Academy of Sciences to the Gulf of California in 1921. The marine algae. Proceedings of the California Academy of Science, Fourth Series 12(29): 695-949, pls 12-88, map.

Created: 03 June 1998 by M.D. Guiry

Verified by: 15 May 2017 by G.M. Guiry

Accesses: This record has been accessed by users 625 times since it was created.

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Citing AlgaeBase
Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 15 April 2021.

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