152,895 species and infraspecific names are in the database, 20,947 images, 59,136 bibliographic items, 408,271 distributional records.

Hapalidium Kützing, 1843

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

Holotype species: Hapalidium roseolum Kützing

Currently accepted name for the type species: Melobesia membranacea (Esper) J.V.Lamouroux

Original publication and holotype designation: Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.
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Precise date of publication: 14-16 September 1843 (see Stafleu & Cowan 1979: 686 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 Melobesia.

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 Hapalidium 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 Hapalidium is typified (ICBN Art 10.1) by the type of H. roseolum, the only species originally included in the genus. - (28 Aug 2009) -

Description: No genus description is provided currently as this names is treated as a synonym.

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 J. Woelkerling but may now be outdated.

Comments: Chamberlain (1983: 300) concluded from an examination of the type specimen (L 941.241-152) that Hapalidium roseolum, the type species of Hapalidium, is a heterotypic synonym of Melobesia membranacea (Esper) J.V. Lamouroux, the type species of Melobesia (Family Hapalidiaceae). Consequently, Hapalidium Kützing (1843) is treated as a heterotypic synonym of Melobesia J.V. Lamouroux (1812).

Even though Hapalidium is a heterotypic synonym of Melobesia, the family name Hapalidiaceae, which is derived from the generic name Hapalidium, is legitimate and therefore nomenclaturally correct, as explained by Woelkerling (1988: 86) and Harvey et. al. (2003: 995).

Numbers of names and species: There are 9 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
Chamberlain, Y.M. (1983). Studies in the Corallinaceae with special reference to Fosliella and Pneophyllum in the British Isles. Bulletin of the British Museum (Natural History) Botany 11: 291-463, 89 figs.

Harvey, A.S., Broadwater, S.T., Woelkerling, W.J. & Mitrovski, P.J. (2003). Choreonema (Corallinales, Rhodophyta): 18S rDNA phylogeny and resurrection of the Hapalidiaceae for the subfamilies Choreonematoideae, Austrolithoideae and Melobesioideae. Journal of Phycology 39: 988-998.

Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.

Lamouroux, [J.V.F.] (1812). Extrait d'un mémoire sur la classification des Polypiers coralligènes non entièrement pierreux. Nouveaux Bulletin des Sciences, par la Société Philomathique de Paris 3: 181-188.

Stafleu, F.A. & Cowan, R.S. (1979). Taxonomic literature... Volume II: H-Le. Vol. 98 pp. XVIII + 991. Utrecht: Bohn, Scheltema & Holkema.

Woelkerling, W.J. (1988). The Coralline Red Algae: an analysis of the genera and subfamilies of nongeniculate Corallinaceae. pp. i-xi, 1-268, 259 figs, tables numbered by chapter. London & Oxford: British Museum (Natural History) & Oxford University Press.

Caragnano, A., Foetisch, A., Maneveldt, G.W., Millet, L., Liu, L.C., Lin, S.M., Rodondi, G. & Payri, C.E. (2018). Revision of Corallinaceae (Corallinales, Rhodophyta): recognizing Dawsoniolithon gen. nov., Parvicellularium gen. nov. and Chamberlainoideae subfam. nov. containing Chamberlainium gen. nov. and Pneophyllum. Journal of Phycology 54(3): 391-409.

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

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Please cite this record as:
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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