Resumen

RAMIREZ, Natalia A; NIVEIRO, Nicolás  y  POPOFF, Orlando F. Agaricales del Chaco Oriental 1: Primer registro de Tetrapyrgos nigripes (Marasmiaceae) y Xeromphalina tenuipes (Mycenaceae) para la región. Bol. Soc. Argent. Bot. [online]. 2013, vol.48, n.3-4, pp.381-386. ISSN 1851-2372.

Agaricales from the eastern Chaco 1: First record of Tetrapyrgos nigripes (Marasmiaceae) and Xeromphalina tenuipes (Mycenaceae) for the region. Tetrapyrgos nigripes and Xeromphalina tenuipes are described and illustrated, constituting first records of these two pantropical species for the Chaco Oriental region. Tetrapyrgos nigripes is characterized by its centrally stipitated pileus with tetrahedric spores and a pileipellis with rameal structures, while X. tenuipes has a yellowish to ochraceus orange pileus, paler yellow lamellae, and a reddish brown stipe covered by abundant hairs that give it a velvety appearance.

Palabras clave : Basidiomycota; Lignicolous fungi; Colonia Benitez Natural Educative Reserve; Diversity.

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