Hyalosynedra laevigata (Grunow) Williams and Round

Sabir, J. S. M., Theriot, E. C., Lobban, C. S., Alhebshi, A. M., Al-Malki, A. L., Hajrah, N. H., Khiyami, M. A., Obaid, A. Y., Jansen, R. K. & Ashworth, M. A., 2018, Systematics of araphid diatoms with asymmetric rimoportulae or densely packed virgae, with particular attention to Hyalosynedra (Ulnariaceae, Bacillariophyta), Phytotaxa 347 (1), pp. 1-49 : 7

Hyalosynedra laevigata (Grunow) Williams and Round

Basionym: — Synedra laevigata Grunow (1877 , 166)

Synonyms: — Synedra laevigata var. obtiuscula Grunow (1877) p. 166 , pl. 193, fig. 4; Fragilaria laevigata (Grun.) Lange-Bertalot (1980) p. 752.

Type locality: —” ... I have seen this diatom from various localities ( Honduras, Mauritius, Samoa Islands)...” Grunow (1877), p.166.

Lectotype: —Naturhistorisches Museum Wein, Grunow 839

Material studied: —Grunow 839 and 840 Naturhistorisches Museum Wein; Cultured material (“21IV14-4D long synedroid 27”) from collection ECT4118 , epiphyte samples taken from Anadyomene spp. thalli from Rabbit Key Basin , Florida, USA (24 o 58.60’ N, 80 o 50.41’ W)