Neurymenia J.Agardh, 1863

Holotype species: Neurymenia fraxinifolia (Mertens ex Turner) J.Agardh

Original publication and holotype designation: Agardh, J.G. (1863). Species genera et ordines algarum, seu descriptiones succinctae specierum, generum et ordinum, quibus algarum regnum constituitur. Volumen secundum: algas florideas complectens. Part 2, fasc. 3. pp. 787-1138, 1158-1291. Lundae [Lund]: C.W.K. Gleerup. [in Latin]

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Description: Thallus erect, irregularly branched, with a prominent midrib and crisp membranous wings with conspicuous lateral veins. Apices involute. Margins with dichotomously branched teeth. Adventitious terete branchlets with trichoblasts arising from veins on both surfaces of the thallus, occasionally also from the midrib. Lower portions sometimes denuded, leaving a bare midrib. Structure uniaxial, with 5 pericentral cells and a medulla of 2 layers of large hyaline cells arising from the lateral pericentral cells, bordered by a single layer of smaller pigmented cortical cells; midrib with additional secondary thickening. Reproductive structures borne on trichoblasts on dorsal side of adventitious branchlets. Tetrasporangia in stichidia, tetrahedrally divided. Life history triphasic with isomorphic gametophytes and sporophytes. Reproductive branchlets determinate, mostly adventitious on the midrib or lateral veins. Tetrasporangial stichidia terminating fertile branchlets, having 2 fertile cells in each segment. Gametangial branchlets producing fertile cells in place of trichoblasts: the male with unicellular, cystocarps with multicellular stalks.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 2018-10-09 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=36776

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 09 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 27 November 2024