Eunotia paludosa Grunow 1862 , p. 336

Vijver, Bart Van De, Lange-Bertalot, Horst, Goeyers, Charlotte, Mertens, Adrienne, Schuster, Tanja M. & Ector, Luc, 2022, The identity of Eunotia paludosa Grunow 1862 (Eunotiaceae, Bacillariophyta), a revision, and the description of three new species of Eunotia Ehrenberg, Phytotaxa 545 (3), pp. 261-277 : 263

Eunotia paludosa Grunow 1862, p. 336 , pl. 3, fig. 10, ( Figs 1–36 )

Type:— AUSTRIA, Mandling (“in paludibus prope Mandling in Styria auctumno 1859”), Grunow sample 522, lectotype (Plate 3, figs 10c & d in Grunow 1862 designated in Lange-Bertalot et al. 2011, p. 232); isolectotypes (here designated): slide BR-4715! ( BR, Meise Botanic Garden) and slide W0164808 both prepared based on Grunow sample 522 (Mandling, Styria, Austria, coll. date 30.IX.1859 (Grunow erroneously put 31/IX/ 1859 in his annotation book), leg. A. Grunow)

PhycoBank registration:—http://phycobank.org/103145

Synonyms:— Eunotia denticulata var. fennica Hustedt (1932: 291) , Eunotia fennica ( Hustedt 1932: 291) Lange-Bertalot (in Werum & Lange-Bertalot 2004: 152)

Figures

FIGURES 1–28. Eunotia paludosa Grunow LM images taken from the isolectotype (Grunow sample 522, Mandling, Styria, Austria, BR-4715). Figs 1–23. LM views of the population arranged in decreasing length. The arrows indicate the presence of dorsal spines. Figs. 24–28. LM views of frustules in girdle view. Scale bar represents 10 µm.

FIGURES 29–36. Eunotia paludosa Grunow SEM images taken from the lectotype material (Grunow sample 522, Mandling, Styria, Austria). Fig. 29. External view of a frustule in girdle view showing the ventral side with the raphe branches. Fig. 30. SEM external view of a frustule in girdle view showing the dorsal side with the clear presence of spines. Figs 31–32. External detail of a valve apex, focusing on the terminal raphe fissures. Note spines on the dorsal side. Fig. 33. SEM external detail of dorsal spines near the middle of the valve. Fig. 34. Internal view in valve face view. The dorsal spines are clearly visible. The arrow indicates the presence of the rimoportula. Fig. 35. SEM internal detail of a valve apex showing helictoglossa. Fig. 36. SEM internal detail of a valve apex showing helictoglossa and rimoportula (arrow). Scale bars indicate 10 µm for figs 29, 30 & 34, 1 µm for figs 31–33, 35 & 36.