Lyrella hennedyi f. cuneata (A. Schmidt) Ryabushko (2006: 61)

Nevrova, Elena, Witkowski, Andrzej, Kulikovskiy, Maxim, Lange-Bertalot, Horst & Kociolek, J. Patrick, 2013, A revision of the diatom genus Lyrella Karayeva (Bacillariophyta: Lyrellaceae) from the Black Sea, with descriptions of five new species, Phytotaxa 83 (1), pp. 1-38 : 30

Lyrella hennedyi f. cuneata (A. Schmidt) Ryabushko (2006: 61)

Basionym: Navicula hennedyi var. cuneata A. Schmidt in A. Schmidt et al. (1874: pl. 3, fig. 4)

Navicula hennedyi f. cuneata (A. Schmidt) Hust. (1961–1966: 455, fig. 1517)

Valves elliptic with strongly cuneate or rostrate apices; lateral areas relatively large, semi-lanceolate, encompassing almost 1/3 of the valve width. Striae slightly radiate, relatively long, 9–11 in 10 µm.

Distribution:—Marine species, rather rare variety, known from the Mexican coast (Campeche Bay) (Schmidt et al. 1874–1959), and from the Mediterranean Sea (Villefranche) (H. & M. Peragallo 1897 –1908). Black Sea, Bulgarian coast ( Temniskova-Topalova & Petrova-Karadjova 1998).

Literature:— Schmidt et al. (1874–1959: pl. 3, fig. 4)); Hustedt (1961 –1966: 455, fig. 1517); Temniskova-Topalova & Petrova-Karadjova (1998: 74, no micrograph); Ryabushko (2006: 61, no micrograph).