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

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 spores 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.

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