Brasilonema Fiore, Sant-Anna, de Paiva Azevedo, Komarek, Kaštovský, Sulek & Lorenzi, 2007

Holotype species: Brasilonema bromeliae Fiore, Sant-Anna, de Paiva Azevedo, Komarek, Kaštovský, Sulek & Lorenzi

Original publication and holotype designation: Fiore, M.F., Sant'Anna, C.L., de Paiva Azevedo, M. T., Komarek, J., Kaštovský, Sulek, J. & Lorenzi, A.S. (2007). The cyanobacterial genus Brasilonema, gen. nov., a molecular and phenotypic evaluation . Journal of Phycology 43: 789-798, 7 figs, 1 table.

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Description: "Filamentous cyanobacterium, attached to solid (mainly subaerophytic) substrates, forming macroscopic, velvet-like strata, sometimes composed from densely arranged, erect fascicles. Filaments ensheathed, intensely fasciculated, parallel situated, long, 12-26 microns wide, cylindrical, of the same width along the whole length: Tolypothrix- or Scytonema- like false branching occurs sporadically, mainly in terminal parts of filaments. Sheaths thin or slightly thickened, sometimes slightly lamellate, colorless or yellow brown, at the ends roundly closed, open after hormogonia release. Trichomes cylindrical, not or very slightly constricted at cross walls, not attenuated toward ends. Cells of different length, very short (up to 1/5 of width) in hormogonia, apical parts of trichomes and in meristematic zones, up to longer than wide in old parts; apical cells morphologically identical with other vegetative cells, rounded at the apex. Heterocytes solitary, intercalary, discoid up to cylindrical, up to longer than wide. Without akinetes. Reproduction by homogonia: fragmentation of trichomes by necridic cells or without necridic cells, but by formation of special lamellae between divided cells."

The most recent alteration to this page was made on 2023-12-26 by E.A. Molinari Novoa.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=50799

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 26 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 March 2024

 
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