Achnanthes diplopunctata Simonsen

Achnanthes diplopunctata Simonsen

Achnanthes diplopunctata Simonsen in Diatom Res. 27(2): 82. Jun 2012

is basionym for Planothidium diplopunctatum (Simonsen) Witkowski & Lange-Bert. in Notul. Algarum 297: 2. 10 Jul 2023

is validating Achnanthes diplopunctata Simonsen in Kieler Meeresforschungen 15(1): 76, t. 10: fig. 4-7. 1959, nom. inval.1,2

Holotype: Germany, Boknis-Eck,, alt. 0 m, 26 Jan 1955, Di119 (BRM: SIM5/19)3

Paratype: Germany, Stoller Grund, Profil Rinne, alt. 0 m, 26 Jan 1955, Di116 (BRM: SIM5/16)4

1. Art. 40.1; Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (eds.) 2018: International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code), adopted by the Nineteenth International Botanical Congress, Shenzhen, China, July 2017. Regnum Vegetabile 159. – Glashütten: Koeltz Botanical Books, 2. Original description: Valvae lanceolatae, apicibus plerumque leniter rostratis 24-32 µ longae, 7-8 µ latae. Raphovalva raphi recta, area axilaris angusta, area centralis leniter dilatata. Striae radiantes, 11-13 in 10 µ, striae 12-14 in 19 µ, ex areolis decussantibus compositae (non visibiles nisi cum lentibus opticis fortissimis!)., 3. Finder 491.6, 4. Finder 585.6