Taxonomic revision of Eunotia luna var. aequalis f. paucistriata Frenguelli and E. luna var. aequalis f. major Frenguelli: analysis of type material, lectotypification and current taxonomic status

JOSÉ M. GUERRERO; AMELIA A. VOUILLOUD

doi:10.11646/phytotaxa.561.3.5

Issue: Vol. 561 No. 3: 12 September 2022

Type: Article

Published: 2022-09-12

DOI: 10.11646/phytotaxa.561.3.5

Page range: 291-300

Abstract views: 22

PDF downloaded: 1

Taxonomic revision of Eunotia luna var. aequalis f. paucistriata Frenguelli and E. luna var. aequalis f. major Frenguelli: analysis of type material, lectotypification and current taxonomic status

JOSÉ M. GUERRERO⁺⁻
AMELIA A. VOUILLOUD⁺⁻

División Ficología “Dr. Sebastián A. Guarrera”, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina.

diatoms Esteros del Iberá Eunotia deficiens Eunotia silviasalae Frenguelli Collection valve morphology Fungi

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Abstract

The valve morphology of the infraspecific taxa of Eunotia luna reported by J. Frenguelli for the Esteros del Iberá (Argentina) (E. luna var. aequalis, E. luna var. aequalis f. paucistriata and E. luna var. aequalis f. major) were examined to elucidate their taxonomic position. As result of the study with light and electron microscopy, we concluded that E. luna var. aequalis sensu Frenguelli and E. luna var. aequalis f. paucistriata are in fact the extremes of the range of variation of the same taxon, here considered as synonym of Eunotia deficiens. E. luna var. aequalis f. major shows a distinct valve morphology and it is therefore raised to the status of species as Eunotia silviasalae nom. nov. Since Frenguelli did not designate holotypes for E. luna var. aequalis f. paucistriata and E. luna var. aequalis f. major, we designate herein the corresponding lectotypes.

References

Bicca, A.B. & Torgan, L. (2009) New reports of Eunotia Ehrenberg (Eunotiaceae-Bacillariophyta) for Rio Grande do Sul State and Brazil. Acta Botanica Brasilica 23: 427–435. https://doi.org/10.1590/S0102-33062009000200014
Casa, V. (2020) Diatomeas de turberas de Tierra del Fuego: diversidad, ecología y evaluación de su uso como indicadores ambientales. Tesis doctoral, FCEN, UBA. 223 pp.
Cavalcante, K.P., Tremarin, P.I., Castro, E.C., Tibiric, Á.C.E.J.A., Wojciechowski, J. & Ludwig, T.A.V. (2014) Epiphytic Eunotia (Bacillariophyceae) on Podostemum from Santa Catarina, southern Brazil, including new observations on morphology and taxonomy of some rare recorded species. Biota Neotropica 14: 1–12. https://doi.org/10.1590/1676-06032014003414
CEN/TC 230 (2002) Water quality–Guidance standard for the routine sampling and pretreatment of benthic diatoms from rivers. European Standard. Standard reference 13946.
Costa, L.F., Wetzel, C.E., Lange-Bertalot, H., Ector, L. & Bicudo, D.C. (2017) Taxonomy and ecology of Eunotia species (Bacillariophyta) in southeastern Brazilian reservoirs. Bibliotheca Diatomologica 64: 1–302.
De Garcia Souza, D.R., Bueno, N.C., Nardelli, M.S., Tremarin, P.I., Ludwig, T.A.V. & Baumgartner, G. (2015) Eunotia Ehrenberg (Bacillariophyceae) in the Hercílio River, Santa Catarina, southern Brazil. Brazilian Journal of Botany 38: 623–637. https://doi.org/10.1007/s40415-015-0159-5
Dunck, B., Ruwer, D.T. & Felisberto, S.A. (2016) Eunotiaceae Kützing (Bacillariophyceae) perifíticas de áreas úmidas do Cerrado (veredas) no Brasil. Iheringia Série Botânica 71: 283–295.
Ehrenberg, C.G. (1837) Über ein aus fossilen Infusorien bestehendes, 1832 zu Brod verbacknes Bergmehl von den Grenzen Lapplands in Schweden. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin Erster Jarhrgang: 43–45.
Ehrenberg, C.G. (1845) Neue Untersuchungen über das kleinste Leben als geologisches Moment. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin 1845: 53–87.
Ehrenberg, C.G. (1854) Mikrogeologie. Einundvierzig Tafeln mit über viertausend grossentheils colorirten Figuren, Gezeichnet vom Verfasser. Leipzig: Verlag von Leopold Voss. 31 pp. 
Favaretto, C.C.R., Tremarin, P.I., Medeiros, G., Ludwig, T.A.V. & Bueno, N.C. (2021) Eunotia (Bacillariophyceae) from a subtropical stream adjacent to Iguaçu National Park, Brazil, with the proposition of a new species. Biota Neotropica 21: e20190811. https://doi.org/10.1590/1676-0611-BN-2019-0811
Frenguelli, J. (1933) Contribuciones al conocimiento de las diatomeas Argentinas. VII. Diatomeas de la región de los Esteros del Yberá (en la Provincia de Corrientes). Anales del Museo Nacional de Historia Natural 37: 365–475.
Frenguelli, J. (1941) XVI Contribución al conocimiento de las diatomeas argentinas. Diatomeas del Río de la Plata. Revista del Museo de La Plata (Nueva Serie) Botánica 3: 213–334. 
Krasske, G. (1939) Fur Kieselalgen flora Brasiliensis I. Bermerkenswerte und neue Formen aus den Açudas Nordost-Brasiliens. Archiv für Hydrobiologie (Planktologie) 35: 552–562.
Kützing, F.T. (1844) Die Kieselschaligen Bacillarien oder Diatomeen. W. Köhne, Nordhausen. 152 pp. https://doi.org/10.5962/bhl.title.64360
Lamaro, A.A., Sala, S.E., Kociolek, J.P., Swenson, J., Simonato, J., Vouilloud, A.A., Guerrero, J.M. & Kociolek, M. (2021) El rol de las nuevas tecnologías en la revalorización de las colecciones biológicas históricas. Un ejemplo: el proyecto “Siguiendo los pasos de Frenguelli en los Esteros del Iberá”. Revista del Museo de La Plata 6: 1–13. https://doi.org/10.24215/25456377e140 
Lange-Bertalot, H., Bąk, M. & Witkowski, A. (2011) Eunotia and some related genera. In: Diatoms of Europe. Diatoms of the European inland water and comparable habitats. Vol. 6. 747 pp.
Mataloni, G. (1999) Ecological studies on algal communities from Tierra del Fuego peat bogs. Hydrobiologia 391: 157–171. https://doi.org/10.1023/A:1003593513413
Mataloni, G. & Tell, G. (1996) Comparative analysis of the phytoplankton communities of a peat bog from Tierra del Fuego (Argentina). Hydrobiologia 325: 101–112. https://doi.org/10.1007/BF00028270
Metzeltin, D. & Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1–695.
Metzeltin, D. & Lange-Bertalot, H. (2007) Tropical Diatoms of South America II. Special remarks on biogeography disjunction. Iconographia Diatomologica 18: 1–877.
Metzeltin, D., Lange-Bertalot, H. & García-Rodriguez, F. (2005) Diatoms of Uruguay. Compared with other taxa from South America and elsewhere. Iconographia Diatomologica 15: 1–736.
Oliveira, B.D., Nogueira, I.S. & Souza, M.G.M. (2012) Eunotiaceae Kützing (Bacillariophyceae) plânctonicas do Sistema Lago dos Tigres, Britânia, GO, Brasil. Hoehnea 39: 297–313. https://doi.org/10.1590/S2236-89062012000200009
Pavlov, A. & Levkov, Z. (2013) Diversity and distribution of taxa in the genus Eunotia Ehrenberg (Bacillariophyta) in Macedonia. Phytotaxa 86: 1–117. https://doi.org/10.11646/phytotaxa.86.1.1
Rabenhorst, L. (1864) Flora europaea algarum aquae dulcis et submarinae. Sectio I. Algas diatomaceas complectens, cum figuris generum omnium xylographice impressis. Apud Eduardum Kummerum, 359 pp. https://doi.org/10.5962/bhl.title.7029
Ramsar Sites Information Services. (2022) Lagunas y Esteros del Iberá. Available from: https://rsis.ramsar.org/ris/1162 (accessed 5 August 2022)
Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The Diatoms. Biology & Morphology of the genera. Cambridge University Press, Cambridge. 747 pp.
Ruwer, D.T., Blanco, S. & Rodrigues, L. (2021) Eunotia Ehrenberg (Eunotiaceae, Bacillariophyta) in a subtropical floodplain: a new species and taxonomic contributions. Phytotaxa 505: 157–175. https://doi.org/10.11646/phytotaxa.505.2.3
Sala, S.E., Duque, S.R., Núñez-Avellaneda, M. & Lamaro, A.A. (2002) Diatoms from the Colombian Amazon: some species of the genus Eunotia (Bacillariophyceae). Acta Amazonica 32: 589–603. https://doi.org/10.1590/1809-43922002324603
Schmidt, A. et al. (1913) Atlas der Diatomaceen-kunde. Series VI (Heft 72). Leipzig. O.R. Reisland. pls. 285–288. [F. Hustedt].
Smith, W. (1850) On deposits of diatomaceous earth found on the shores of Lough Mourne, Co. Antrim, with a record of species living in the waters of the lake. Annals and Magazine of Natural History, 2nd series 5: 124. https://doi.org/10.1080/03745486009494899
Simonsen, R. (1987) Atlas and catalogue of the diatom types of Friedrich Hustedt. Vols. 1–3. Berlin & Stuttgart: J. Cramer in der Gebrüder Borntraeger Velagsbuchhandlung. Vol. 1: Catalogue. Vol. 2: pls. 1–395. Vol. 3: pls. 396–772. pp. 1–525, 772 pls.
Swenson, J. (2020) Diatoms of the Esteros del Iberá. A taxonomic and ecological comparison of historic and contemporary collections. MS Thesis. Colorado University, Boulder. 88 pp.
VanLandingham, S.L. (1969) Catalogue of the fossil and recent Genera and Species of Diatoms and their Synonyms. Part III Coscinophaena through Fibula. Lehre: J. Cramer. pp. 1087–1756.
Vouilloud, A.A., Plata-Díaz, Y., Pedraza, E., Pimienta, A., Heguilor, S., Lamaro, A. & Sala, S.E. (2016) Distribución de Eunotia parasiolii (Bacillariophyceae) en ríos neotropicales (Colombia) y su implicancia en la taxonomía de la especie. Hidrobiológica 26: 241–250.
Vouilloud, A.A., Guerrero, J.M., Lamaro, A.A. & Palladino, M.B. (2021) Revision of the type materials of Stauroneis schinzii var. argentina Frenguelli and S. schinzii var. maxima Frenguelli (Bacillariophyceae). Phytotaxa 478: 119–130. https://doi.org/10.11646/phytotaxa.478.1.8
Wydrzycka, U. & Lange-Bertalot, H. (2001) Las diatomeas (Bacillariophyceae) acidófilas del río Agrio y sitios vinculados con su cuenca, volcán Poás, Costa Rica. Brenesia 55–56: 1–68.
Zalocar de Domitrovic, Y. & Maidana, N.I. (1997) Taxonomic and ecological studies of the Paraná River diatom flora (Argentina). Bibliotheca Diatomologica 34: 1–122.