161,704 species and infraspecific names are in the database, 22,723 images, 63,694 bibliographic items, 473,646 distributional records.

Gelidiocolax N.L.Gardner, 1927

Holotype species: Gelidiocolax microsphaericus N.L.Gardner

Original publication and holotype designation: Gardner, N.L. (1927). New Rhodophyceae from the Pacific coast of North America. III. University of California Publications in Botany 13: 333-368, pls 59-71.

Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as masculine.

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Nomenclatural notes
Monotypic when first introduced. - (26 Jan 2017) - M.D. Guiry

Description: Erumpent fronds are diminutive (to 5 mm diam.), pale pink or colorless, and form aggregates of spherical tubercules on hosts of the genera Gelidium and Pterocladia. Plants consist of a basal mass of penetrating rhizoids variously reported as forming or lacking secondary pit connections to host tissue and which give rise outwardly to a solid mass of isodiametric cells. Early gonimoblast stages are not known, but carposporophytes apparently consist of a small basal fusion cell and radiating chains of carposporangia that form in conceptacle-like chambers communicating to the surface by an ostiole. Carposporophytes are aggregated in fertile lobes and are surrounded by a thick pericarp. Spermatangia differentiate over entire surfaces of lobes, the mother cells giving rise to rows of 3-4. Tetrasporangia are cruciately divided and are also scattered across the thallus surface.

Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 6 Nov 2020 by M.D. Guiry.

Comments: Distribution: The type species is recorded from California, Mexico and West Africa (Senegal), and a second, G. mammillata Fan and Papenfuss, is similarly widespread in Hawaii, southern California, and Japan. Others are limited in distribution and occur in Venezuela, Mediterranean France, and and South Africa.

Numbers of names and species: There are 10 species names in the database at present, of which 8 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

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.

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

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: 28 December 2000 by M.D. Guiry

Verified by: 06 November 2020 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33204

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 June 2021.

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