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Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Gelidiales
Family Gelidiaceae
Genus Gelidium

Pictures

click on thumbnail for larger version.

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
North of Galicia, Spain, 2014. Ignacio Barbara. © Ignacio Barbara.

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Gelidium pusillum var. pulvinatum, middle intertidal, Ría de Muros, Galicia, Spain, 2013, Ignacio Bárbara. Ignacio Bárbara. © Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Gelidium pusillum var. pulvinatum, middle intertidal, Ría de Muros, Galicia, Spain, 2013, Ignacio Bárbara. Ignacio Bárbara. © Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Gelidium pusillum var. pulvinatum, middle intertidal, Ría de Muros, Galicia, Spain, 2013, Ignacio Bárbara. Ignacio Bárbara. © Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Ría de Arousa, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Ría de Arousa, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
Ría de Arousa, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
A Coruña, Galicia, Spain, 2005. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
microscope, Spain, Galicia, Ría de Coruña, 2007. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann
microscope, Spain, Galicia, Ría de Coruña, 2007. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

 

Conferva brachyarthra Kützing

Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann Gelidium pusillum var. pulvinatum, middle intertidal, Ría de Muros, Galicia, Spain, 2013, Ignacio Bárbara
© Bárbara (barbara@udc.es)

Publication details
Gelidium pusillum var. pulvinatum (C.Agardh) Feldmann in Feldmann & Hamel 1936: 113

Published in: Feldmann, J. & Hamel, G. (1936). Floridées de France VII. Gélidiales. Revue Algologique 9: 85-140, 36 figs, pls 2-6.

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.

Basionym
Sphaerococcus corneus var. pulvinatus C.Agardh

Type information
Type locality: Cadíz, Spain

Origin of species name
Adjective (Latin), very small (Stearn 1973).

Homotypic Synonym(s)
Sphaerococcus corneus var. pulvinatus C.Agardh 1822
Acrocarpus pulvinatus (C.Agardh) Kützing 1849
Gelidium pulvinatum (C.Agardh) Grunow 1868

General environment
This is a marine species.

Description
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.

Habitat
On rock in upper intertidal forming extensive mat-like growths below Pelvetia canaliculata, particularly on vertical or near-vertical surfaces. Sometimes associated with Catenella opuntia (p. 00) and Rhodothamniella purpurea (p. 00). Widely distributed, common.

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

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

Detailed distribution with sources (Click to Load)

Key references
Lee, H.-B. & Kim, J.-I. (1995). Notes on gelidiales species from Korea. In: Taxonomy of Economic Seaweeds. (Abbott, I.A. Eds) Vol.5, pp. 161-174. La Jolla, California: California Sea Grant College System.

Created: 21 August 1996 by M.D. Guiry

Verified by: 04 September 2017 by M.D. Guiry

Accesses: This record has been accessed by users 5810 times since it was created.

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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=914

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 February 2019.

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