156,940 species and infraspecific names are in the database, 22,044 images, 60,670 bibliographic items, 451,244 distributional records.

Bornetella Munier-Chalmas, 1877

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Ulvophyceae
Order Dasycladales
Family Dasycladaceae

Holotype species: Bornetella nitida Munier-Chalmas ex Sonder

Original publication:Munier-Chalmas, E. (1877). Observations sur les algues calcaires appartenant au groupe des Siphonées verticillées (Dasycladées Harv.) et confondues avec les Foraminifères. Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. 85: 814-817, 4 figs.

Taxonomic status: currently recognized as a distinct genus.

Description: Thalli subspherical, oval to club-shaped unicells to 3 cm long. Reduced central siphonous axis apparently determinate enclosed even at apex by tight series of whorls of primary then secondary laterals, which expand and conjoin to form a grass green photosynthetic cortex slightly protruding through a layer of calcification. In B. sphaerica central siphon with ca. 200 nuclei from 2.5-10 &m diam. Parietal chloroplasts numerous and discoid, without stacked grana; pyrenoid absent. Gametangia modified secondary laterals located along primary laterals. Mature gametangia in B. sphaerica with ca. 2000 nuclei. Gametangia form uninucleate cysts which produce biflagellate gametes liberated through an ostiole formed by a structured operculum. Bornetella tropical to subtropical Pacific Southern Hemisphere. Most species with wide distributions, B. clavellina known only from southern Japan. Firmly attached to solid substrate in shallow subtidal, especially in coral reef lagoons. Most similar to Cymopoliaand Neomeris and these genera often segregated in own subfamily.

Information contributed by: L.B. Liddle. The most recent alteration to this page was made on 7 Mar 2005 by Robert Wilkes.

Numbers of names and species: There are 7 species names in the database at present, as well as 2 infraspecific names. Of the species names, 6 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.

References
Zechman, F.W. (2003). Phylogeny of the Dasycladales (Chlorophyta, Ulvophyceae) based on analyses of RUBISCO large subunit (rbcL) gene sequences. Journal of Phycology 39: 819-827.

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: 28 December 2000 by M.D. Guiry

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Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=35950

Citing AlgaeBase
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 05 December 2019.

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