6038
Originally described as a species of Boletus '' in 2002 , it was transferred to Suillellus '' in 2014 .
 Boletus, Suillellus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Boletus, Suillellus