Eunotia depressa Ehrenb., Abh. K. Akad. Wiss. Berlin, Physik. Kl., 1841: 413, Tafel I, Fig IV: 6b, Tafel IV, Fig I: 12, 1843

Silva, Weliton Jose da, Jahn, Regine & Menezes, Mariangela, 2012, Diatoms from Brazil: the taxa recorded by Christian Gottfried Ehrenberg, PhytoKeys 18, pp. 19-37 : 21

Eunotia depressa Ehrenb., Abh. K. Akad. Wiss. Berlin, Physik. Kl., 1841: 413, Tafel I, Fig IV: 6b, Tafel IV, Fig I: 12, 1843 Fig 8-9

Lectotype (designated here).

Specimen in preparation 180403a, marked with yellow (g) ring, from sample 1099, "Rio Conigo in Rio de Janeiro", Ehrenberg Collection, in BHUPM (Museum für Naturkunde) ( Fig 8 ).

Locality of the lectotype.

Rio Conigo [ Cônego River], Nova Friburgo, Rio de Janeiro, Brazil.

Locality of the other syntype.

"New York?"

Original description.

" striata, anguste linearis, ventre plano aut leviter concavo, dorso depresso plano, prope apices rotundatos subito attenuato."

Ehrenberg (1843, p. 373) defined that Eunotia depressa occurred in Brazil and possibly in USA (New York). We verified the preparations from New York (K: 25, B: 4; K: 26, B: 1, 3) but did not find any citation of Eunotia depressa . Therefore, we defined the lectotype from the material from Brazil.

Figures

Figures 6 - 14. Diatoms from Brazil published by Christian Gottfried Ehrenberg 6 - 7 Eunotia bidens Ehrenb 6 Lectotype, preparation 180404 b, marked with yellow (g) ring, from sample 1099 " Rio Conigo in Rio de Janeiro ", Ehrenberg Collection, in BHUPM (Museum fuer Naturkunde) 7 Another specimen of Eunotia bidens found in preparation 180405 a, marked with yellow (g) ring 8 - 9 Eunotia depressa Ehrenb 8 Lectotype, preparation 180403 a, marked with yellow (g) ring, from sample 1099, " Rio Conigo in Rio de Janeiro ", Ehrenberg Collection, in BHUPM 9 Eunotia depressa provided by Ehrenberg (1843, Tafel I, Fig IV: 6 b) 10 - 12 Eunotia elephas Ehrenb 10 Part of Ehrenberg's drawing sheet No. 2050 from " Praya de Sernambatyba " (Barra Beach) 11 Lectotypus, preparation 180502 e, marked with red (r) ring, from sample 1104 " Praya Senambatyba, Rio de Janeiro ", Ehrenberg Collection, BHUPM 12 Another specimen of Eunotia elephas found in preparation 180502 e, marked with red (r) 13 Pinnularia microstauron (Ehrenb.) Cleve, lectotype, preparation 180502 d, marked with red (r) ring, from sample 1104, " Praya de Sernambatyba, Rio de Janeiro ", Ehrenberg Collection, in BHUPM 14 Terpsinoe brasiliensis Ehrenb., lectotype, preparation 180411 a, marked with blue (bl) ring, from sample 1102, " Rio Consescao der Insel St. Catharina ", in BHUPM; Scale bars: 10 µm