IBBEA 24401
INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Unidad Ejecutora - UE
artículos
Título:
Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
Autor/es:
MAIDANA N. I.; APONTE, G. A.; SCHÄBITZ, F.; MORALES, E. A.; FEY, M.
Revista:
NOVA HEDWIGIA, ZEITSCHRIFT FUR KRYPTOGAMENKUNDE
Editorial:
GEBRUDER BORNTRAEGER
Referencias:
Lugar: Stuttgart; Año: 2017 vol. 146 p. 89 - 102
ISSN:
0029-5035
Resumen:
Two new diatomspecies, Cyclostephanos salsae and Placoneis patagonica found in plankton,superficial sediments and quaternary lacustrine sediment samples from Laguna Cháltel,Southern Argentina, are described. The detailed morphology of these two taxa is examined using both light(LM) and scanning electron microscopy (SEM). The main morphological featuresthat distinguish C. salsae sp. nov. arethe raised central area without fultoportulae and with scattered areolae, and andthe presence of some interstriae bifurcated on the valve mantle, bearing onefultoportulae in one of the forks. The variable, sometimes asymmetrical outlineand the irregularly spaced central striae are the main morphological featuresof P. patagonica sp. nov. The relationships of these two new taxawith morphologically similar species and their ecological affinities arediscussed.
