▁special ized ▁methods , ▁such ▁as ▁ch el ating ▁mole cules , ▁but ▁more ▁research ▁on ▁this ▁subject ▁is ▁needed . ▁ ▁Sym b ion t ▁specific ity ▁ ▁Current ▁mole cular ▁analysis ▁has ▁allowed ▁for ▁the ▁identification ▁of ▁specific ▁tax a ▁forming ▁sym bi otic ▁relationships ▁which ▁are ▁of ▁interest ▁in ▁the ▁study , ▁cultiv ation , ▁and ▁conservation ▁of ▁orch ids . ▁This ▁is ▁especially ▁important ▁in ▁the ▁trade ▁and ▁pres ervation ▁end anger ed ▁species ▁or ▁orch ids ▁of ▁commercial ▁value ▁like ▁the ▁van illa ▁bean . ▁There ▁have ▁been ▁seen ▁tr ends ▁in ▁the ▁type ▁of ▁sym b ios es ▁found ▁in ▁orch ids , ▁depending ▁primarily ▁on ▁the ▁life - style ▁of ▁the ▁orch id , ▁as ▁the ▁sym b ios is ▁is ▁primarily ▁of ▁benefit ▁to ▁the ▁plant . ▁Terr est rial ▁orch ids ▁have ▁been ▁found ▁to ▁commonly ▁associate ▁with ▁T ulas nel lace ae , ▁however ▁some ▁aut ot roph ic ▁and ▁non - aut ot roph ic ▁orch ids ▁do ▁associate ▁with ▁several ▁e ct omy cor rh iz al ▁fung i . ▁E pi ph yt ic ▁fung i , ▁however , ▁may ▁associate ▁more ▁commonly ▁with ▁limited ▁cl ades ▁of ▁rh izo ct onia , ▁a ▁poly phy let ic ▁grouping . ▁These ▁fung i ▁may ▁form ▁significant ▁sym b ios es ▁with ▁either ▁an ▁e pi ph yt ic ▁or ▁terrest rial ▁orch id , ▁but ▁rarely ▁do ▁they ▁associate ▁with ▁both . ▁ ▁Using ▁seed - b ait ing ▁techniques