Gelidiella ramellosa (Kützing) Feldmann & Hamel (1934:533 or 534)



Taxonomy & Nomenclature

Synonym/s: Acrocarpus ramellosus Kützing (1843:405); Gelidium ramellosum (Kützing) Trevisan (1845); Echinocaulon ramellosum (Ktitzing) Feldmann (1931:8)


Conservation Status

Last record: between 4 December 1838 and 8 January 1842 (Huisman et al., 2009)

Rediscovered on 25 January 2005 (Huisman et al., 2009)



near Two Rocks, Western Australia, Australia

Type locality: "An Muschelschalen der Küste von Neuholland: Preiss!" [on mussel shells on the coast of New Holland = Western Australia] (Kützing, 1843:405; Guiry, 2020)


This species has been reported from many locations around the world such as Tunisia, Japan and the Mediterranean Sea (see Huisman et al., 2009; Bottalico et al., 2015; Guiry, 2020), but many of these records are misidentifications (see Huisman et al., 2009; Bottalico et al., 2015) and many others lack proper evidence. For the time being the species is perhaps best considered as being a Western Australian endemic.


Biology & Ecology

A marine species.









Original scientific description:

Kützing, F. T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Published by the author. 458 pp.


Other references:

Bottalico, A., Russo, C., Furnari, G. and Perrone, C. (2015). Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea. Phytotaxa 291(2): 155-164.

Feldmann, J. and Hamel, G. (1934). Observations sur quelques Gélidiacées. Revue Générale de Botanique 46: 528-549, 11 figs.

M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 August 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 07 October 2023

Huisman, J. M., Phillips, J. C. and Freshwater, D. W. (2009). Rediscovery of Gelidiella ramellosa (Kützing) Feldmann et Hamel (Gelidiales, Rhodophyta) from near the type locality in Western Australia. Cryptogamie, Algologie 30(1): 3-16.

Marchant, N. G. (1990). The Western Australian collecting localities of J.A.L. Preiss, pp. 131-135. In: Short, P. S. (ed.). History of Systematic Botany in Australasia. South Yarra: Australian Systematic Botany Society Inc.

Perrone, C., Felicini, G. P. and Bottalico, A. (2006). The prostrate system of the Gelidiales: diagnostic and taxonomic importance. Botanica Marina 49: 23-33.

Santelices, B. (2007). Testing the usefulness of attachment structures in the taxonomy of small-sized gelidioids. Phycologia 46(3): 293-299, 13 figs, 3 tables.

Womersley, H. B. S. and Guiry, M. D. (1994). Order Gelidiales Kylin 1923: 132. In: The marine benthic flora of southern Australia. Part IIIA. Bangiophyceae and Florideophyceae (Acrochaetiales, Nemaliales, Gelidiales, Hildenbrandiales and Gigartinales sensu lato). (Womersley, H.B.S. Eds), pp. 118-142. Canberra: Australian Biological Resources Study.


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