Bornetella Munier-Chalmas, 1877
Holotype species: Bornetella nitida (Munier-Chalmas) Sonder
Original publication and holotype designation: 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 de Paris 85: 814-817, 4 figures.
Request PDFFossil: This is a genus of fossil species, or a genus with a fossil type species, or a genus the type species of which was originally described as a fossil.
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 Cymopolia and 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 2023-08-22 by Luka Sato.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as feminine.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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.
Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=35950
Citing AlgaeBase
Cite this record as:
Luka Sato in Guiry, M.D. & Guiry, G.M. 22 August 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024
