328903
Allopsalliota was circumscribed in 1998 to contain what was then known as Agaricus geesterani , a species first described in 1986 by Cornelis Bas and Paul Heinemann .
 Cornelis Bas, Paul Heinemann
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cornelis Bas, Paul Heinemann