Nematophora J.Agardh, 1890
Holotype species: Nematophora australis J.Agardh
Currently accepted name for the type species: Dasya extensa Sonder ex Kützing
Original publication and holotype designation: Agardh, J.G. (1890). Till algernes systematik. Nya bidrag. (Sjette afdelningen.). Lunds Universitets Års-Skrift, Andra Afdelningen, Kongl. Fysiografiska Sällskapets i Lund Handlingar 26(3): 1-125, III pls.
Request PDFDescription: Thallus erect, somewhat cartilaginous, terete and irregularly laterally branched. Outer surfaces of indeterminate axes covered with short, monosiphonous, simple or branched, multicellular hairs (pseudolaterals?). Axial cells reportedly lacking periaxials, moderately corticated by large and smaller rhizoidal filaments, the outermost layers of the cortex composed of layers of progressively smaller cells. Spermatangial stichidia on monosiphonous stalks on indeterminate axes or hairs. Procarps, cystocarps and sporangia unknown.
Information kindly contributed by C.W. Schneider but may now be outdated.
Taxonomic status: This name is currently regarded as a synonym of Dasya.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Díaz-Tapia, P., Pasella, M.M., Verbruggen, H. & Maggs, C.A. (2019). Morphological evolution and classification of the red algal order Ceramiales inferred using plastid phylogenomics. Molecular Phylogenetics and Evolution 137: 76-85, fig. 3.
Comments: Rare plant from Australia, unknown since its collection in the last century. Endogenia J. Agardh (1897), based solely on tetrasporic plants, possibly congeneric with Nematophora. Additional study of the Agardh specimens is necessary for taxonomic and morphological clarification; for example, sympodial growth, a characteristic of the Dasyaceae in which it is tentatively placed, remains unreported.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=42860
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 10 July 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 April 2024
