156,476 species and infraspecific names are in the database, 22,021 images, 60,453 bibliographic items, 447,756 distributional records.

Crassiphycus Guiry, J.N.Norris, Fredericq & Gurgel, 2018

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Gracilariales
Family Gracilariaceae
Subfamily Gracilarioideae
Tribe Gracilarieae

Holotype species: Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris & Fredericq

Original publication and holotype designation: Guiry, M.D., Norris, J.N., Fredericq, S. & Gurgel C.F.D. (2018). Crassiphycus Guiry, Gurgel, J.N.Norris & Fredericq, gen. nov., a replacement name for Crassa Gurgel, J.N.Norris & Fredericq, nom. inval. (Gracilariaceae, Rhodophyta), with some additional nomenclatural notes. Notulae Algarum 82: 1-4, no figs.
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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. (2019). Fourth addendum to the synoptic review of red algal genera. Botanica Marina 00: [1-13].

Description: Gonimoblast mass (placenta) spherical, sharp transition between gonimoblast and upper short usually dichotomously branched chains of carposporangia. Cystocarp floor flat and well defined; gametophytic fusion cells dendritic. Spermatangia of the medullary type only, forming deep conceptacles which are often confluent, giving rise to multiple cavities in the medulla when seen in transverse sections.

Information contributed by: Oriiginal description. The most recent alteration to this page was made on 17 May 2019 by M.D. Guiry.

Numbers of names and species: There are 11 species names in the database at present, of which 11 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.

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: 11 December 2018 by M.D. Guiry

Verified by: 17 May 2019 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=52648

Citing AlgaeBase
Please 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 16 October 2019.

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