Saprofit

There have been abundant mycological expeditions to Patagonia, but locations sampled covered only a minimum portion of this extent region. In this way, most expeditions were focused in opposite endings of Subantarctic Forests: Tierra del Fuego at the south, and Neuquén and Rio Negro (Argentina), Santiago and Maule (Chile) at the north. All the territory comprehended between these provinces remains largely unknown for agaricoid fungi. The primal objective of the present work was to assess the richness of agaricoid species present in Nothofagus pumilio (lenga) forests in Chubut (Argentina), a part of this large portion of territory where no previous information is available. Four samplings took place from 2012 to 2014 in three different forests of Chubut province of Argentina. A total of 130 species of agaricoid fungi were found. Among them, 125 belong to Agaricales, 2 to Boletales and 3 to Russulales. Cortinariaceae (Agaricales) was the most diverse family, with 57 species. A key to all agaricoid species found is presented. We provide new records for 4 species at country level and 124 at province level.

A new species of Uleiorchis from Serra dos Carajás National Forest, Pará, Brazil, is described. This is the fourth species of
this mycoheterotrophic genus. The species is illustrated, its affinities with related species are discussed, and a key to the species
of the genus is presented. The new species differs from U. ulei, U. pratënsis and U. liesneri by the extremely elongated
pedicel, the ligulate lip with a distal round dilatation, and by the elliptic, smooth stigmatic zone.

A new species of Uleiorchis from Serra dos Carajás National Forest, Pará, Brazil, is described. This is the fourth species of this mycoheterotrophic genus. The species is illustrated, its affinities with related species are discussed, and a key to the species of the genus is presented. The new species differs from U. ulei, U. pratënsis and U. liesneri by the extremely elongated pedicel, the ligulate lip with a distal round dilatation, and by the elliptic, smooth stigmatic zone.

Se han realizado abundantes expediciones micologicas en Patagonia, pero los sitios relevados han cubierto solo una porcion minima de esta extensa region. Asi, las expediciones micologicas se centraron en los extremos norte (Neuquen y Rio Negro en Argentina, Santiago y Maule en Chile) y sur (Tierra del Fuego argentina y chilena) de los bosques subantarticos. El territorio comprendido entre estas provincias permanence inexplorado para los hongos agaricoides. El objetivo central de este trabajo fue evaluar la riqueza de especies de hongos agaricoides en bosques puros de Nothofagus pumilio (lenga) en Chubut (Argentina). Se realizaron 4 viajes de muestreo entre 2012 y 2014 en 3 bosques en la provincia del Chubut en Argentina. Se encontraron 130 especies de hongos agaricoides. Entre ellas, 125 pertenecen al orden Agaricales, 2 al orden Boletales y 3 al orden Russulales. La familia Cortinariaceae (Agaricales) fue la mas rica, con 57 especies. Se presenta una clave para todas las especies h...