 The mushroom was found buried with up to two @-@ thirds of the stem in sandy soil near several shrubs ( Fabaceae subfamily Mimosoideae and others ) in a semi @-@ arid region , after heavy precipitation . The species is known only from the type locality in Vale do Catimbau National Park in Brazil , in the state of Pernambuco . It fruits at an elevation of 900 to 1 @,@ 000 m ( 3 @,@ 000 to 3 @,@ 300 ft ) . This is part of the biodiverse cerrado ecoregion , in an area known as the campos rupestres . Although the fungus is suspected to be mycorrhizal ( like all Lactarius ) , there was a wide diversity of plant species growing in the open , dry forest where the mushroom was found ( including members of the tree families Euphorbiaceae , Fabaceae , Myrtaceae , Nyctaginaceae , and Polygonaceae — all known to form mycorrhizal associations ) , so the authors did not speculate on any specific interactions . 
