Fosliella M.Howe, 1920
Holotype species: Fosliella farinosa (J.V.Lamouroux) M.Howe
Original publication and holotype designation: Howe, M.A. (1920). Algae. In: The Bahama flora. (Britton, N.L. & Millspaugh, C.F. Eds), pp. 553-618. New York: published by the authors.
Request PDFDescription: Thalli comprising dorsiventral crusts <200 um thick in most species; some species composed of unconsolidated filaments. Vegetative parts of thalli consisting of two orders of filaments (dimerous), first-order filaments (primigenous filaments) growing along the substrate in a unistratose layer and second-order filaments (postigenous filaments) growing upward from them at about right angles to the substrate. Second-order filaments sometimes consisting only of single epithallial cells (in which case thallus is two cells thick). Sometimes second-order filaments 2-5 cells long each terminating in an epithallial cell in which case penultimate cells are meristematic and capable of dividing to produce epithallial cells upward and vegetative cells below. Epiphytic on algae and seagrasses, or epilithic; adhering firmly, but lacking hausteria. Each spore germinating into a 4-celled sporeling from which the remainder of thallus is derived. Outermost walls of epithallial cells rounded or flattened, not flared. Cells in contiguous filaments sometimes joined by fusions; secondary pit-connections unknown. Trichocytes sometimes present as terminal cells of first-order filaments or intercalary in second-order filaments. Reproductive cells forming in protruding uniporate conceptacles. Bisporangia sometimes present. Apical sporangial plugs absent. Gametangia poorly known.
Information contributed by: H.W. Johansen. The most recent alteration to this page was made on 2017-01-20 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. I. pp. [i]-xxxxviii, 1-762. Thessaloniki: Published and distributed by the author.
Comments: Fosliella is apparently widespread as an early colonizer of available surfaces on rocks, algae, and seagrasses. Harlin et al (1985) reported that 4 species of Fosliella were intolerant of increasing salinity in Shark Bay, Western Australia. Fosliella has a complicated nomenclatural history. Furthermore, aside from the publications listed below, monographic studies are lacking. For numerous reasons the genus is most closely related to Pneophyllum and Spongites.
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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.
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 November 2024
