The species that Korhonen called EBS B was named A. bulbosa by Helga Marxmüller in 1982,[REF] as it was thought to be equivalent to Armillaria mellea var.
Phylogenetic analysis of North American Armillaria species based on analysis of amplified fragment length polymorphism data suggests that A. gallica is most closely related to A. sinapina, A. cepistipes, and A. calvescens [REF].