Las esporas de Acrocladium auriculatum y Lepyrodon lagurus (Bryophyta) de la región fueguina de Argentina

M. Raquel Piñeiro; Rosana Solan; Sonia L. Fontana

doi:10.14522/darwiniana.2021.91.925

Authors

M. Raquel Piñeiro Cátedra de Palinología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata-UNLP, Calle 64 N° 3, 1900, La Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas-CONICET, Argentina. https://orcid.org/0000-0001-5866-0421
Rosana Solan Cátedra de Palinología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata-UNLP, Calle 64 N° 3, 1900, La Plata, Buenos Aires, Argentina. https://orcid.org/0000-0003-1932-9319
Sonia L. Fontana Cátedra de Palinología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata-UNLP, Calle 64 N° 3, 1900, La Plata, Buenos Aires, Argentina; Faculty of Resource Management, University of Applied Sciences and Arts-HAWK, Büsgenweg 1a, 37077 Göttingen, Germany. https://orcid.org/0000-0001-8238-4172

DOI:

https://doi.org/10.14522/darwiniana.2021.91.925

Keywords:

Acrocladium, Argentina, Bryophyta, Lepyrodon, morphology, spores, Tierra del Fuego

Abstract

Acrocladium and Lepyrodon are pleurocarpic moss genera of Southern distribution. The species A. auriculatum and L. lagurus inhabit in the Fuegian region of Argentina as the dominant representatives of these genera. A detail description of their spores has not been reported up to now. The objective of this study is to compare the morphological characteristics of the spores and establish their diagnostic value in the systematic of these taxa. The spores were studied from herbarium specimens, with Light Microscope and Scanning Electron Microscope. The results showed differences between the size ranges and the type of spore ornamentation. These characteristics would add to and contribute to reinforce the morphological differences between species, highlighting the role of spores as an important source of systematic and biological information for these taxa.