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Gloiocladia australis (J.Agardh) R.E.Norris

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Rhodymeniales
Family Faucheaceae
Genus Gloiocladia

Pictures

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Gloiocladia australis (J.Agardh) R.E.Norris
Kearn Reef, Jurien Bay, Western Australia. G.J.Edgar. © G.J.Edgar.

Gloiocladia australis (J.Agardh) R.E.Norris
Australia. 25 May 2011. John Huisman. © John Huisman (j.huisman@murdoch.edu.au).

 

Prasiola fluviatilis (Sommerfelt) Areschoug ex Lagerstedt

Gloiocladia australis (J.Agardh) R.E.Norris Australia
© John Huisman (j.huisman@murdoch.edu.au)

Publication details
Gloiocladia australis (J.Agardh) R.E.Norris 1991: 592 (as 'australe' )

Published in: Norris, R.E. (1991). Some unusual marine red algae (Rhodophyta) from South Africa. Phycologia 30: 582-596, 25 figs,1 table.
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Type species
The type species (holotype) of the genus Gloiocladia is Gloiocladia furcata (C.Agardh) J.Agardh.

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

Basionym
Gloioderma australe J.Agardh

Type information
Type locality: Western Australia (Silva, Basson & Moe 1996: 363).

Origin of species name
Adjective (Latin), south, southern (Stearn 1973).

Homotypic Synonym(s)
Gloioderma australe J.Agardh 1851

Heterotypic Synonym(s)
Callophyllis australis Sonder 1848
Sphaerococcus aculeatus Zanardini ex Frauenfeld 1855
Horea speciosa Harvey 1859
Haligone rosea Kützing 1866
Gloioderma tasmanica Zanardini 1874
Horea tasmanica (Zanardini) Sonder 1880
Bindera ramosa J.Agardh 1894
Gloiocladia speciosa (Harvey) R.E.Norris 1991

Nomenclatural notes
Norris (1991: 592) and Womersley (1996: 98) cite Gloiocladia australe and Gloioderma australis (basionym). - (18 Mar 2009) - Wendy Guiry

General environment
This is a marine species.

Description
Thallus medium to dark red to red-brown, fading to grey-red, (10-) 20-40 cm high, soft and mucilaginous, complanately branched with flat, irregularly pinnate branches for 3 or 4 orders, main branches (3) 6-10 mm broad, bearing marginal pinnate branches 3-10 cm long and also simple branchlets 3-10 mm long, with ultimate branchlets 1-2 mm broad; compact, rounded, potentially adhesive, discs 23 mm across, terminate few to numerous branchlets. Holdfast discoid, with adhesions also by the discs of dense, elongate cells; usually epiphytic on sea-grasses or larger algae, or epilithic (?). Structure multiaxial, developing a cortex 50-90 µm thick of slender branched filaments 5-8 cells long, with the lower 2-3 cells irregular, 5-10 µm broad, and the upper 3-5 cells ovoid, 2-3 µm in diameter, arising from the lax inner cortex of ovoid cells 15-25 µm in diameter. Medulla 35 cells thick, cells large, ovoid, 60-200 (250) µm in diameter, with frequent secondary pit-connections. Hairs on outer cortical cells common. Rhodoplasts discoid to elongate in cortical cells, ribbon like in medullary cells.

Habitat
Usually epiphytic on seagrasses (Womersley 1996: 98).

Detailed distribution with sources (Click to Load)

Key references
Silva, P.C., Basson, P.W. & Moe, R.L. (1996). Catalogue of the benthic marine algae of the Indian Ocean. University of California Publications in Botany 79: 1-1259.

Womersley, H.B.S. (1996). The marine benthic flora of southern Australia - Part IIIB - Gracilariales, Rhodymeniales, Corallinales and Bonnemaisoniales. Vol. 5 pp. 1-392, 160 figs. Canberra & Adelaide: Australian Biological Resources Study & the State Herbarium of South Australia.

Created: 20 January 1998 by M.D. Guiry

Verified by: 06 March 2015 by M.D. Guiry

Accesses: This record has been accessed by users 701 times since it was created.

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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 21 August 2019.

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