 Suillus americanus was first described scientifically by American mycologist Charles Horton Peck in 1888 , based on specimens he had originally collected as far back as 1869 , in New York state , near Sand Lake , Albany , and Port Jefferson . In his 1888 publication he indicated that he had originally listed these collections as Boletus flavidus ( now known as Suillus flavidus ) in his 1869 Report of the State Botanist ( published in 1872 ) . However , as was pointed out nearly a century later in 1986 , the 1869 report does not actually mention the species ; rather , Peck 's field notes that year ( which served as the basis for the report ) reference a collection at Sand Lake upon which the original ( 1888 ) description was most likely based . Because Peck failed to designate a type specimen , one of the Sand Lake specimens was lectotypified in 1986 . 
