RESUMENSe describen 15 especies de hongos anamorfos saprobios colectados en un fragmento de selva del Centro de Interpretación y Convivencia con la Naturaleza Yumka' en el estado de Tabasco. En todos los casos el número de registros a nivel mundial son escasos, razón por la que los consideramos como raros. De las especies estudiadas, seis son nuevos reportes para el neotrópico y todas representan nuevos registros para México y Tabasco; ocho de ellas no habían sido recolectadas desde su descripción original. Se propone el nombre nuevo Sporidesmium multiforme nom. nov para Sporidesmium polymorphum R.F. Castañeda. Para cada especie se incluye su descripción morfológica, ilustraciones e información sobre su distribución mundial conocida hasta la fecha. Las descripciones fueron realizadas con material extraído directamente de los restos vegetales.
ABSTRACTA total of 15 species of saprobe anamorphic fungi collected in a fragment of jungle of the Centro de Interpretación y Convivencia con la Naturaleza Yumka' in the state of Tabasco are described. For all species studied, the number of records worldwide are scarce, a reason Acta Botanica Mexicana 96: 15-31 (2011) 16 for which we consider them to be rare. Of the species studied, six are new reports for the Neotropical region and all represent new records for Mexico and Tabasco. In addition, eight of them had not been reported since their original description. A morphological description, illustrations and up-to-date known world distributions are included for each taxon. A new name Sporidesmium multiforme nom. nov is proposed for Sporidesmium polymorphum R.F. Castañeda. The descriptions that appear were done from material extracted directly from the leaf litter.
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