Catacombas D.M.Wiliams & Round, 1986

Holotype species: Navicula gaillonii Bory

Currently accepted name for the type species: Tabularia gaillonii (Bory) Bukhtiyarova

Original publication and holotype designation: Williams, D.M. & Round, F.E. (1986). Revision of the genus Synedra Ehrenb. Diatom Research 1(2): 313-339, 71 figs.

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Description: Valves linear, sometimes tapering towards the poles. Valve surface areolate, with regularly spaced, branched closing plates between transapical ribs. Areolation terminates at the fadmantle junction and then continues again on the valve mantle. Mantle is turned at right angles to the valve face with each rib inter-connected at the junction. Valve constructed of two layers inter-connected by transapical ribs. Sternum distinct, central. Rimportulae at each pole, close to the polar pore field. The pore-field is of the ocellulimbus type and a few small spines overhang it. Girdle of four bands, all incomplete and ligulate. Valvocopula and copula non-areolate. Valvocopula attaching to the valve by a continuous, smooth lip. The two pleurae are areolate, with a single row of pores. Chromatophores are numerous, small and discoidal.

Information kindly contributed by Original description but may now be outdated.

Taxonomic status: This name is currently regarded as a synonym of Tabularia.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Compère, P. (2001). Ulnaria (Kützing) Compère, a new genus name for Fragilaria subgen. Alterasynedra Lange-Bertalot with comments on the typification of Synedra Ehrenberg. In: Lange-Bertalot Festschrift. Studies on diatoms dedicated to Prof. Dr. Dr. h.c. Horst Lange-Bertalot on the occasion of his 65th birthday. (Jahn, R., Kociolek, J.P., Witkowski, A. & Compère, P. Eds), pp. 97-101. Ruggell: A.R.G. Gantner Verlag K.G.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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. 18 October 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024