Holotype species: Bornetia secundiflora (J.Agardh) Thuret
Original publication and holotype designation: Thuret, G. (1855). Note sur une nouveau genre d'algues de la famille de Floridées. Mémoires de la Société Impériale des Sciences Naturelles de Cherbourg 3: 155-160, pls I, II.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. II. pp. , 763-1504. Thessaloniki: Published and distributed by the author.
Monotypic when first introduced. - (25 Jan 2017) - M.D. Guiry
Description: Thallus subdichotomously to unilaterally branched, ecorticate, cells elongate, large, multinucleate with discoid chromoplasts. Procarps 2(-3) on successive subapical cells of lateral axes with large basal cell and 5-6(-8) smaller cells. Each subapical cell bears pericentral cell usually with a pseudocarpogonium. Supporting cell with terminal sterile cell and lateral 4-celled carpogonial branch. Supporting cell forms auxiliary cell with the sterile cell attached. Fusion cell including supporting cell, axial cell(s) and lower gonimoblast cells, becoming massive and bearing terminal carposporangia. Involucral branches from axial cells below. Spermatangial heads ovoid to elongate, sessile on bifurcate branches of condensed branch systems. Tetrasporangia tetrahedrally-divided, sessile on similar condensed branches.
Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 27 Feb 2017 by M.D. Guiry.
Comments: Some features ally Bornetia with Sphondylothamnieae, Spermothamnieae and Griffithsieae. Phylogenetic relationships remain unclear at present.
Numbers of names and species: There are 7 species names in the database at present, of which 5 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.
Wynne, M.J. & Schneider, C.W. (2010). Addendum to the synoptic review of red algal genera. Botanica Marina 53: 291-299.
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: 31 December 2000 by M.D. Guiry
Verified by: 27 February 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33262
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 12 April 2021.