Elaphomyces species (Elaphomycetaceae, Eurotiales) from Bartlett Experimental Forest, New Hampshire, USA.

We describe five new species of Elaphomyces from Bartlett Experimental Forest, New Hampshire, USA (E. americanus, E. bartlettii, E. macrosporus, E. oreoides, and E. remickii) and revise the description of a sixth previously published species (E. verruculosus). Of the five new species, E. bartlettii and E. remickii are only known from New Hampshire whereas E. americanus, E. macrosporus, and E. oreoides are widely distributed in eastern North America. Elaphomyces verruculosus is the most widespread and abundant Elaphomyces species in eastern North America with a distribution extending from eastern Canada south to northeastern Mexico. All six Elaphomyces species are putatively associated with Tsuga canadensis, a tree species in regional decline. For five of the six Elaphomyces species, we report partially consumed ascomata or rodent fecal samples containing spores, indicating that small mammals play a key role in dispersing these Elaphomyces species and that the Elaphomyces are an important part of the small mammals' diet.