 In 1875 , Charles Horton Peck described Boletus nigrellus from specimens he collected in Sand Lake , New York . Murrill reduced this name to synonymy with T. alboater in 1916 , and noted that Peck 's description was made from young material obtained " before the white tubes had been colored by mature spores " . Several later authorities have treated Peck 's species as a synonym of Tylopilus alboater ; this synonymy , however , is not indicated by either of the taxonomic authorities Index Fungorum or MycoBank . 
