Gayralia K.L., 1969
Holotype species: Ulva oxysperma Kützing
Currently accepted name for the type species: Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel & al.
Original publication and holotype designation: Vinogradova, K.L. (1969). K. sistematike poryadka Ulvales (Chlorophyta) s.l. A contribution to the taxonomy of the order Ulvales. Botanicheskij Zhurnal SSSR 54: 1347-1355, one un-numbered figure. [in Russian with English title and summary]
Taxonomic status: currently recognized as a distinct genus.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe. Bd 13. Chlorophyta: Ulvophyceae (Krienitz, L. ed.). pp. [i]-vii, -288, 182 figs. Berlin: Springer Spektrum.
Description: Gametophyte macroscopic and parenchymatous, initially saccate, later forming leafy monostromatic blades from a few cm to a meter or more in length. The blade may be attached to the substrate by rhizoidal protuberances, or it may be free floating. The blade thallus is always one cell in thickness except in the region of the holdfast. Cells are polygonal and isodiametric in upper portion of blade, becoming more elongate towards base. They possess a parietal chloroplast with single prominent pyrenoid. Asexual reproduction by biflagellate zoospores liberated by disintegration of cell wall on one side of the thallus. Sexual reproduction unknown.
Information contributed by: Skaloud <i>et al.</i> (2018: 149).. The most recent alteration to this page was made on 16 Mar 2018 by M.D. Guiry.
Comments: Gayralia is widely distributed from arctic to tropics in marine to brackish habitats. In axenic culture, plants develop abnormally, comprising a colony of round cells with numerous rhizoids; normal morphology returns after bacteria are reintroduced.
Numbers of names and species: There are 2 species names in the database at present, as well as 1 infraspecific names. Of the species names, 2 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: 16 March 2018 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=42532
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 05 August 2020.