Gelidium pusillum (Stackhouse) Le Jolis 1863

Gelidium pusillum (Stackhouse) Le Jolis

Current name: Gelidium pusillum (Stackhouse) Le Jolis
Gelidium pulchellum, middle intertidal rocky pool, South of Galicia, Spain, 2013, Ignacio BárbaraIgancio Bárbara (

Publication Details
Gelidium pusillum (Stackhouse) Le Jolis 1863: 139

Published in: Le Jolis, A. (1863). Liste des algues marines de Cherbourg. Mémoires de la Société Impériale des Sciences Naturelles de Cherbourg 10: 5-168, pls I-IV.

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Type Species
The type species (holotype) of the genus Gelidium is Gelidium corneum (Hudson) J.V.Lamouroux.

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

Fucus pusillus Stackhouse

Type Information
Type locality: Sidmouth, Devon, England; (Dixon & Irvine 1977: 129) Lectotype (provisional): BM; (Dixon & Irvine 1977: 139)

Origin of Species Name
Adjective (Latin), very small (Stearn 1973).

General Environment
This is a marine species.

Cartilaginous, purplish or blackish red, turf-forming, 2-10 mm high, arising from an extensive creeping base and incorporating shell debris and small molluscs. Erect fronds flattened and leaf-like and 0.5-2 mm broad.

On rock in upper intertidal forming extensive mat-like growths below Pelvetia canaliculata, particularly on vertical or near-vertical surfaces. Sometimes associated with Catenella caespitosa and Rhodothamniella purpurea. Widely distributed, common.

Key Characteristics
Turf formation in the upper intertidal, blackish-red colour when slightly dry, and extensive rhizoids.

Similar Species
Catenella caespitosa also forms turf- or mat-like extensions but is softer has has the appearance of small cocktail sausages.

Created: 30 March 1996 by M.D. Guiry.

Last updated: 03 June 2021

Verification of Data
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 June 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 10 December 2023

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