▁Cor all or h iza ▁mac ul ata , ▁a ▁my co - h eter ot roph ic ▁orch id , ▁have ▁been ▁found ▁to ▁closely ▁associate ▁with ▁Russ ul aceae ▁regardless ▁of ▁ge ological ▁location ▁or ▁the ▁presence ▁of ▁other ▁orch ids . ▁The ▁terrest rial ▁Chile an ▁orch ids ▁Ch l ora ea ▁col lic ensis ▁and ▁C . ▁g av il u ▁have ▁been ▁found ▁to ▁have ▁only ▁one ▁key ▁sym b ion t ▁in ▁the ▁genus ▁Rh izo ct onia . ▁Research ▁suggests ▁that ▁orch ids ▁which ▁are ▁considered ▁to ▁be ▁general ists ▁will ▁associate ▁with ▁other ▁general ist ▁fung i , ▁often ▁with ▁several ▁species , ▁however ▁orch ids ▁with ▁high ▁degrees ▁of ▁special ization ▁will ▁have ▁less ▁fung al ▁associations . ▁ ▁The ▁environment ▁may ▁also ▁affect ▁the ▁fung al ▁sym b ios is , ▁with ▁differences ▁in ▁tropical ▁versus ▁temper ate ▁orch ids . ▁The ▁photos yn th etic ▁orch id ▁Go ody era ▁pub esc ens ▁was ▁found ▁to ▁associate ▁with ▁only ▁one ▁domin ate ▁fung us , ▁unless ▁subject ed ▁to ▁changes ▁in ▁the ▁environment , ▁like ▁dr ought , ▁in ▁which ▁case ▁the ▁orch id ▁was ▁able ▁to ▁change ▁sym b ion ts ▁in ▁response ▁to ▁str esses . ▁This ▁is ▁unique ▁in ▁that ▁it ▁conflicts ▁with ▁the ▁tr ends ▁seen ▁in ▁most ▁ar bus cular ▁and ▁e ct omy cor rh iz al ▁sym b ios es ▁which ▁form ▁associations ▁with ▁several ▁fung i ▁at ▁the ▁same ▁time . ▁ ▁The ▁knowledge