Sparlingia G.W., I.W.Strachan & , 1999
Original publication and holotype designation: Saunders, G.W., Strachan, I.M. & Kraft, G.T. (1999). The families of the order Rhodymeniales (Rhodophyta): a molecular-systematic investigation with a description of Faucheaceae fam. nov. Phycologia 38: 23-40.
Taxonomic status: currently recognized as a distinct genus.
Gender: This genus name is currently treated as feminine.
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.
Description: Thallus stipitate with obovate to elliptical simple or sparingly subdichotomous, perforate blades arising from a short stipe borne on a discoid holdfast. Structure multiaxial, cortex of 1-2 layers of small cells, medulla of 3-5 layers of large colorless cells. Male, female and tetrasporangial thalli isomorphic. Spermatangia formed terminally from cortical cells on both blade surfaces. Procarpic, carpogonial branches 4-celled; auxiliary cells branches 2-celled, gonimoblast developing outwards. Cystocarps ostiolate, relatively large, scattered, never coronate, protruding slightly outwards, tela arachnoidea absent. Tetrasporangia formed from intercalary cortical cells, scattered or in ill-defined patches; cortical modification absent. Spores regularly cruciately arranged.
Information contributed by: M.D. Guiry. The most recent alteration to this page was made on 8 Oct 2010 by M.D. Guiry.
Comments: Saunders, Strachan and Kraft's (1999) molecular study of various representatives of the Rhodymeniales shows that Rhodymenia pertusa (Postels and Ruprecht) J. Agardh is not homologous with other species of the genus. More studies of the many species of Rhodymenia are required before further species can be segregated. Sparlingia pertusa, widely distributed in the colder waters of the N. Pacific, is quite unlike any other Rhodymenia species in its generally unbranched, obovate to elliptical, perforate blades.
Numbers of names and species: There are 2 species names in the database at present, of which 1 has 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
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43109
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 15 November 2018.