157,596 species and infraspecific names are in the database, 22,210 images, 61,015 bibliographic items, 459,891 distributional records.

Curdiea Harvey, 1855

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

Holotype species: Curdiea laciniata Harvey

Currently accepted name for the type species: Curdiea angustata (Sonder) A.J.K.Millar

Original publication and holotype designation: Harvey, W.H. (1855). Short characters of some new genera and species of algae discovered on the coast of the colony of Victoria, Australia. Annals and Magazine of Natural History, Series 2 15: 332-336, Plate VIII.C.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Gurgel, C.F.D., Norris, J.N., Schmidt, W.E., Le, H.N. & Fredericq, S. (2018). Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov. Phytotaxa 374(1): 1-23.

Nomenclatural notes
"The name is bestowed in honour of Dr. Daniel Curdie of Tandarook, near Geelong, an early observer of the Algae of Australia, and to whom I am indebted for an interesting collection of Algae collected at the mouth of the Glenelg River, near Cape Northumberland." (Harvey 1855). - (12 Mar 2011) - M.D. Guiry

Description: Plants can exceed 30 cm in length, and are erect from a single crustose base or recumbent and anchored at several points. Fronds range from linear and subdichotomously divided (with varying numbers of marginal prolifications) to foliose and irregularly lobed. Most species are coarse and thick, and no single central axial filaments are apparent in any of the branch orders. Cystocarps are marginal or scattered, very thick-walled, protuberant or deeply sunken in the thallus, and lack tubular nutrient cells. Procarp and early post fertilization events are virtually identical to those of Gracilaria, but subsequent gonimoblast development differs. Gonimoblast initials form thallus-outwardly on the fusion cell, become multinucleate, and initiate outwardly directed chains of gonimoblast cells that mature basipetally into catenate carposporangia while the innermost gonimoblast cells consolidate laterally and basally through their primary pit connections to augment the fusion cell. Fusions also take place between uninucleate cells of the inner gonimoblast tissue and the multinucleate gametmophytic cells at floor of the cystocarp as well as between isolated intercalary gonimoblast cells and cytologically modified inner pericarp cells. Spermatangia are known only in Curdiea coriacea from New Zealand (Nelson & Knight 1997), in which they are formed in nemathecia; tetrasporangia also form in nemathecia.

Information contributed by: G.T. Kraft & M.D. Guiry. The most recent alteration to this page was made on 5 Nov 2018 by M.D. Guiry.

Comments: Most of the 12 species are endemic to southern Australia, particularly the southwest corner, and New Zealand, with 3 species from Antarctica and the subantarctic islands of South Georgia and Crozet. Fredericq and Hommersand (1989) and Nelson & Knight (1997) emphasize the lack of sterile tissue in the carposporophyte and the long, basipetally maturing carposporangial chains as distinctive and defining of Curdiea.

Numbers of names and species: There are 25 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: 01 January 2001 by M.D. Guiry

Verified by: 05 November 2018 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=34271

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 29 February 2020.

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