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Rhabdonia tenera (J.Agardh) J.Agardh

Publication details
Rhabdonia tenera (J.Agardh) J.Agardh 1851: 354

Published in: Agardh, J.G. (1851). Species genera et ordines algarum, seu descriptiones succinctae specierum, generum et ordinum, quibus algarum regnum constituitur. Volumen secundum: algas florideas complectens. Part 2, fasc. 1. pp. 337 [bis]-351 [bis] 352-506. Lundae [Lund]: C.W.K. Gleerup.
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Type species
The type species (lectotype) of the genus Rhabdonia is Rhabdonia coccinea (Harvey) Harvey.

Status of name
This name is currently regarded as a synonym of Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne

Gigartina tenera J.Agardh

Type information
Type locality: West Indies (Womersley 1994: 343). Lectotype: Herb. Agardh, LD 34480 (?); (LD 34483*) (Womersley 1994: 343). Notes: Syntype: Atlantic coast of southern North America; West Indies (Silva et al. 1996: 324). Gabrielson & Hommersand (1982: 41) note that when J. Agardh (1841) originally described G. tenera, he gave as its distribution the Atlantic Ocean along the southern coast of North America and the West Indies; when he transferred it to the genus Rhabdonia he listed specific localities, mentioning the islands of Haiti, St. Croix and Puerto Rico. They note that there are some problems associated with the lectotype, selected by Taylor (Taylor & Rhyne 1970) but accept it for the present. Later, Gabrielson (1985: 277), considers that the lectotype specimen LD 34480 should be superseded and he designates the specimen, LD 34483 (*) as the superseding lectotype since the latter exhibits the greatest conformity with J. Agardh's original description. Silva et al. (1996: 919) note that the specimen 33483 bears an inscription that is not completely legible and thus its provenance is uncertain.

Origin of species name
Adjective (Latin), soft, delicate (Brown 1956).

No synonyms are currently included in AlgaeBase.

Taxonomic notes
In 1851 J. Agardh transferred Gigartina tenera J. Agardh 1841 to the genus Rhabdonia and emended the description. The type sheet of Rhabdonia tenera contains six specimens filed under that name, four of which are Agardhiella subulata (C. Agardh) Kraft & Wynne, while two belong in the genus Solieria. Taylor (in Taylor & Rhyne 1970) selected one of the Solieria specimens LD 34480) as the lectotype of Gigartina tenera based on J. Agardh's emended description but this plant does not agree with the original (1941) description. As no particular specimen can be shown to have been in J. Agardh's hand when he wrote the original description of G. tenera, Gabrielson & Hommersand accept Taylor's lectotypification until such evidence is found (Gabrielson & Hommersand 1982: 41). Gabrielson (1985: 277) designates the specimen , LD 34483 as the superseding lectotype of G. tenera J. Agardh as it exhibits the greatest conformity with J. Agardh's original description. See discussion in Silva et al. (1996: 918, 919). - (16 Jul 2009) - Wendy Guiry

General environment
This is a marine species.

No distributions recorded
No distributional records for this taxon have been recorded by AlgaeBase to date. Generally, recent national lists or extensive regional or state lists have been employed to give a general indication of distribution.

Key references
Gabrielson, P.W. (1985). Agardhiella versus Neoagardhiella (Solieriaceae, Rhodophyta): another look at the lectotypification of Gigartina tenera. Taxon 34: 275-280, 2 figs..

Created: 19 January 1999 by M.D. Guiry

Verified by: 16 July 2009 by Wendy Guiry

Accesses: This record has been accessed by users 439 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Osterhout, W.J.V. (1896). On the life-history of Rhabdonia tenera J. Ag.. Ann Bot 10: 403-427.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=15589

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 February 2020.

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