Difference between revisions of "Eunotia bidens"
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Latest revision as of 15:04, 19 November 2012
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Ordo: Eunotiales
Familia: Eunotiaceae
Genus: Eunotia
Name
Eunotia bidens Ehrenb., Abh. K. Akad. Wiss. Berlin, Physik. Kl., 1841: 413, 1843. – Wikispecies link – Pensoft Profile
Lectotype (designated here)
Specimen in preparation 180404b, marked with yellow (g) ring, from sample 1099 “Rio Conigo in Rio de Janeiro”, Ehrenberg Collection, in BHUPM (Museum für Naturkunde) (Fig. 6).
Locality of the lectotype
Rio Conigo [Cônego River], Nova Friburgo, Rio de Janeiro, Brazil.
Locality of the syntypes
New-York, Andower “Conn.” (Connecticut)
Original description
“striata, ventre plano, dorso convexo medio exciso (bidentato), apicibus dilatatis truncatis. = E. diodon apicibus truncatis.”
Ehrenberg (1843[1], p. 373) cited the original locality as Brazil and USA (New York and Andower, Connecticut). In the material from New York (preparations 250401-250408, 260101-260112 and 260301-260308)we did not find any reference to Eunotia bidens, even under the name Himantidium that Ehrenberg (1843)[1] related to the taxon on page 373. On the other hand, in the material from Andower (preparations 260201-260208) we found a reference to Eunotia bidens in the preparation 260205d, marked with a blue ring, but it was not in a good condition to be photographed. Therefore, we chose the material from Brazil as lectotype.
Taxon Treatment
- Silva, W; Jahn, R; Menezes, M; 2012: Diatoms from Brazil: the taxa recorded by Christian Gottfried Ehrenberg PhytoKeys, 18: 19-37. doi
Other References
- ↑ 1.0 1.1 Ehrenberg C (1843) Verbreitung und Einfluss des mikroskopischen Lebens in Süd- und Nord-Amerika. Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin, Physk. Kl. 1841: 291-445.
Images
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![Figures 6–14. Diatoms from Brazil published by Christian Gottfried Ehrenberg 6–7 Eunotia bidens Ehrenb 6 Lectotype, preparation 180404b, marked with yellow (g) ring, from sample 1099 “Rio Conigo in Rio de Janeiro”, Ehrenberg Collection, in BHUPM (Museum für Naturkunde) 7 Another specimen of Eunotia bidens found in preparation 180405a, marked with yellow (g) ring 8–9 Eunotia depressa Ehrenb 8 Lectotype, preparation 180403a, 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[1], Tafel I, Fig IV: 6b) 10–12 Eunotia elephas Ehrenb 10 Part of Ehrenberg’s drawing sheet No. 2050 from “Praya de Sernambatyba” (Barra Beach) 11 Lectotypus, preparation 180502e, 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 180502e, marked with red (r) 13 Pinnularia microstauron (Ehrenb.) Cleve, lectotype, preparation 180502d, marked with red (r) ring, from sample 1104, “Praya de Sernambatyba, Rio de Janeiro”, Ehrenberg Collection, in BHUPM 14 Terpsinoe brasiliensis Ehrenb., lectotype, preparation 180411a, marked with blue (bl) ring, from sample 1102, “Rio Consescao der Insel St. Catharina”, in BHUPM; Scale bars: 10 µm](/wiki/File:PhytoKeys-018-019-g003.jpg)
- ↑ Ehrenberg C (1843) Verbreitung und Einfluss des mikroskopischen Lebens in Süd- und Nord-Amerika. Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin, Physk. Kl. 1841: 291-445.
