156,052 species and infraspecific names are in the database, 21,990 images, 60,315 bibliographic items, 443,172 distributional records.

Sargassum johnstonii f. gracile Setchell & N.L.Gardner

Publication details
Sargassum johnstonii f. gracile Setchell & N.L.Gardner 1924: 738, pl. 21: fig 76

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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Type species
The type species (holotype) of the genus Sargassum is Sargassum bacciferum (Turner) C.Agardh.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Sargassum johnstonii Setchell & N.L.Gardner

Type information
Type locality: Georges Island, Sonora, Mexico (Silva, Basson & Moe 1996: 681). Type: Ivan M. Johnston (No. 71); April; Herb. Calif. Uni Sci. 1341 (Setchell & Gardner 1924: 737).

Infrageneric classification
Subgenus Sargassum Section Johnstonii

Homotypic Synonym(s)
Sargassum johnstonii f. laxius Setchell & Gardner 1924

General environment
This is a marine species.

Type information
Type locality: Guaymas, Mexico (Setchell & Gardner 1924: 738). Type: Marchant (no.28a); Cast ashore. (Setchell & Gardner 1924: 738).

Detailed distribution with sources (Click to Load)

Key references
Norris, J.N. (2010). Marine algae of the Northern Gulf of California: Chlorophyta and Phaeophyceae. Smithsonian Contributions to Botany 94: i-x, 1-276.

Pedroche, P.F., Silva, P.C., Aguilar Rosas, L.E., Dreckmann, K.M. & Aguilar Rosas, R. (2008). Catálogo de las algas benthónicas del Pacífico de México II. Phaeophycota. pp. [i-viii], i-vi, 15-146. Mexicali & Berkeley: Universidad Autónoma Metropolitana; Universidad Autónoma de Baja California; University of California Berkeley.

Created: 15 November 2001 by Olivia Fitzgerald

Verified by: 31 March 2010 by M.D. Guiry

Accesses: This record has been accessed by users 950 times since it was created.

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Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 August 2019.

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