152,885 species and infraspecific names are in the database, 20,939 images, 59,127 bibliographic items, 408,269 distributional records.

Squamolithon Heydrich, 1911

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Corallinophycidae
Order Hapalidiales
Family Hapalidiaceae
Subfamily Melobesioideae

Holotype species: Squamolithon lenormandii (Areschoug) Heydrich

Currently accepted name for the type species: Phymatolithon lenormandii (Areschoug) Adey

Original publication and holotype designation: Heydrich, F. (1911). Die Lithothamnien von Roscoff. Berichte der deutsche botanischen Gesellschaft 29: 26-32, 1 plate.

Precise date of publication30 March 1911 (see Woelkerling & Lamy 1998: 682 for details). The requirements for valid publication are specified in the ICBN (International Code of Botanical Nomenclature).

Taxonomic status: currently regarded as a synonym of Phymatolithon.

Nomenclatural notes
The ICBN rules cited below are those adopted by the Seventeenth International Botanical Congress, Vienna, Austria, July 2005 (McNeill et al. 2006).

In accordance with ICBN Art. 13.3, the name Squamolithon is treated as pertaining to a non-fossil taxon because its type is based on a non-fossil specimen. No species based on fossil types have been assigned to the genus.

The generic name Squamolithon is typified (ICBN Art 10.1) by the type of S. lenormandii, the only species originally included in the genus. Heydrich also described the new forma S. lenormandii f. roscoviense in the same paper. - (20 Jul 2009) -

Description: No description is currently provided as the name is currently in synonymy.

Information kindly contributed by Wm. J. Woelkerling but may now be outdated.

Comments: Düwel & Wegeberg (1996) confirmed from a detailed study of the lectotype specimen of Squamolithon lenormandii (J.E. Areschoug) Heydrich (i.e. Melobesia lenormandii J.E. Areschoug) that it belongs to Phymatolithon. Adey (1966: 325) had earlier placed the species in Phymatolithon but without examining the type. Consequently, Squamolithon Heydrich (1911) is considered to be a heterotypic synonym of Phymatolithon Foslie (1898).

Numbers of names and species: There are 1 species names in the database at present.

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Click here to also show infraspecific names in the list below.

References
Adey, W.H. (1966). The genera Lithothamnium, Leptophytum (nov. gen.) and Phymatolithon in the Gulf of Maine. Hydrobiologia 28: 321-370, 112 figs, tables I-VI.

Areschoug, J.E. (1852). Ordo XII. Corallineae. In: Species genera et ordines algarum....Volumen secundum: algas florideas complectens. (Agardh, J.G. Eds), pp. 506-576. Lundae [Lund]: C.W.K. Gleerup.

Düwel, L. & Wegeberg, S. (1996). The typification and status of Leptophytum (Corallinaceae, Rhodophyta). Phycologia 35: 470-483.

Foslie, M. (1898). Systematical survey of the Lithothamnia. Det Kongelige Norske Videnskabers Selskabs Skrifter 1898(2): 1-7.

Heydrich, F. (1911). Die Lithothamnien von Roscoff. Berichte der deutsche botanischen Gesellschaft 29: 26-32, 1 plate.

McNeill, J., Barrie, F.R., Burdet, H.M., Demouline, V., Hawksworth, D.L., Marhold, K., Nicolson, D.H., Prado, J., Silva, P.C., Skog, J.E., Wiersema, J.H. & Turland, N.J. (2006). International Code of Botanical Nomenclature (Vienna Code) adopted by the Seventeenth International Botancial Congress Vienna, Austria, July 2005. pp. [i-iv], v-xviii + 1-568. Liechtenstein: A.R.G. Gantner Verlag.

Woelkerling, W.J. & Lamy, D. (1998). Non-geniculate coralline red algae and the Paris Museum: Systematics and scientific history. pp. i-vii, 1-767. Paris: Publications Scientifiques du Muséum/ADAC.

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

Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Created: 23 April 2002 by M.D. Guiry

Verified by: 16 February 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43961

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 September 2018.

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