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A new species of Infundichalara from pine litter

Publication at Faculty of Science |
2012

Abstract

A new species of Infundichalara (anamorphic Helotiales), a hitherto monotypic genus, is described from pine needle litter. Infundichalara minuta sp. nov. forms two conidiophore types.

Erect penicillate conidiophores producing catenulate non-septate hyaline conidia form more frequently than Chalara-like conidiophores with funnel-shaped collarettes produce wedge-shaped phialoconidia. Although its morphological characters correspond more with Xenopolyscytalum, a three-region DNA analyses (ITS, 28S rDNA and EF-1 alpha) of Infundichalara, Xenopolyscytalum, and related Chalara species in the Helotiales confirm the phylogenetic position of the new species within Infundichalara.

It differs from I. microchona by smaller phialides and wedge-shaped conidia.