Zygnema anglicum Guiry, 2024

Guiry AlgaeBase, Michael. D., 2024, Zygnema anglicum Guiry, a replacement name for Zygnema insigne (Hassall) Kützing, nom. illeg., non Zygnema insigne Hassall (Zygnemataceae, Zygnematophyceae), Notulae Algarum 320, pp. 1-2 : 1-2

Zygnema anglicum Guiry , nov. nom.

Replaced synonym: Zygnema insigne (Hassall) Kützing , Species Algarum p. 444, no fig., 1849, nom. illeg. non Zygnema insigne Hassall, A history of the British freshwater algae, p. 440, 1845.

Basionym: Tendaridea insignis Hassall (‘ Tyndaridea ’), A history of the British freshwater algae 163, pl. XXXVIII: figs 6, 7, 1845 ( Fig. 1).

Registration: http://phycobank.org/104462

Note : The locality from which the specimen illustrated ( Fig. 1) was collected is not specified by Hassall (1845, expl. pl. XXXVIII) but is certainly from southern England. A type does not appear to have been designated .

Many thanks to Wolf-Henning Kusber for helpful comments.

Bennett, A.W. (1886). Fresh-water algae (including chlorophyllaceous Protophyta) of the English Lake District; with descriptions of twelve new species. Journal of the Royal Microscopical Society, series 2 6 (1): 1-15, 2 pls.

Dillard, G.E. (1990). Freshwater algae of the southeastern United States Part 3. Chlorophyceae: Zygnematales: Zygnemataceae, Mesotaeniaceae and Desmidaceae (Section 1). Bibliotheca Phycologica 85: [i-vi], 1-172, plus 51 pls.

Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, University of Galway. https://www.algaebase.org; searched on 28 February 2024.

Hassall, A.H. (1845). A history of the British freshwater algae, including descriptions of the Desmideae and Diatomaceae. With upwards of one hundred plates, illustrating the various species. Vol. I. [Text], pp. [i]-viii, [i]-462, [i, err.]. Vol. II. [Plates] [1]-24, pls 1-103 (pl. 55 as ‘LVI’) London, Edinburgh, Paris & Leipzig: S. Highley, H. Baillière; Sunderland & Knox; J.B. Baillière; T.O. Weigel.

Jenner, E. (1845). A flora of Tunbridge Wells: being a list of indigenous plants within a radius of fifteen miles around that place. pp. [i]- xx, [1]-134, [2, subscribers]. Tunbridge Wells & London: Printed and published by J. Colbran; D. Bouge, Fleet Street and Harvey & Darton, 55, Gracechurch Street.

Johnson, L. R, (2011). Phylum Chlorophyta. Family Zygnemataceae. In: The freshwater algal flora of the British Isles. An identification guide to freshwater and terrestrial algae. Second edition. (John, D.M., Whitton, B.A. & Brook, A.J. Eds), pp. 576-608. Cambridge: Cambridge University Press.

Kützing, F.T. (1849). Species algarum. pp. [i]-vi, [1]-922. Lipsiae [Leipzig]: F.A. Brockhaus.

Petlovany, O.A. (2015 '2014'). Zygnematales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 4: Charophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 11-61. Ruggell: Koeltz Scientific Books.