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Issue: Vol. 478 No. 1: 5 January 2021
Type: Article
Published: 2021-01-05
DOI: 10.11646/phytotaxa.478.1.8
Page range: 119–130
Abstract views: 21
PDF downloaded: 1

REVISION OF THE TYPE MATERIALS OF STAURONEIS SCHINZII VAR. ARGENTINA FRENGUELLI AND S. SCHINZII VAR. MAXIMA FRENGUELLI (BACILLARIOPHYCEAE)

División Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina.
División Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina.
División Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina.
División Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina.
Esteros del Iberá Frenguelli Collection Stauroneis typification valve morphology Algae

Abstract

Stauroneis schinzii var. argentina and S. schinzii var. maxima were first described from Esteros del Iberá, a large subtropical wetland located in northeast Argentina. The type materials of these varieties were examined with light and scanning electron microscopy and compared to S. schinzii var. schinzii and other infraspecific taxa. As a result of this study the taxonomic validity of both varieties was confirmed, their diagnosis were emended based on the new morphological information derived, and lectotypes and isolectotypes were designated.