[3] This reassignment was reinforced by R. Watling in 1997 who analyzed the description of Rolf Singer's observations in Argentina and concluded it to be related closer to the Boletinellus genus.

B. monticola is also known to produce brown sclerotia in soil providing the ability for the fungus to survive under extreme environmental conditions.

Since most Alder trees grow north of the equator and B. monticola is only found in warm tropical climates, the fungus is generally rare due to this small geographical region.

[12] Stretching into South America, B. monticola has been found in Argentina, Bolivia, Colombia, Costa Rica, and Ecuador.

According to a study by Pablo Alvarado in 2021 this relationship could have evolved independently from a common ancestor of the Paxillaceae family nearly 98 million years ago.

[14] Using sulpho-vanillin the root and Hartig net stain reddish, bleach with NH4OH and lactic acid, while no reaction occurs when exposed to 15% KOH, Melzer's reagent and 70% ethanol.

[5] The work done by the University of California at Berkeley using PCR (Polymerase Chain Reaction) found the sequences of primers and other codons for specific genes didn't align with other species in the Gyrodon genus.