ɐn ˌɛkspədˈɪʃən tə ðə lˈoʊkəs klˈæsɪkəs ʌv ˈeɪtʃ. hˈɛɾɚɹˌoʊdɑːksə ɔnðə saʊθwˈɛstɚn slˈoʊps ʌv tˈɑːɹɹitˈɛpjuːi ˌʌndɚtˈeɪkən ɪn mˈeɪ tˈuː θˈaʊzənd ˈeɪtiːn kənfˈɜːmd əkˈɜːɹənsᵻz ʌv wˈʌn ˈʌðɚ spˈiːsiːz ʌv hˈɛlɪˌæmfoːɹə, ˈeɪtʃ. kəlˈiːnə, æz wˈɛl æz ɐ ˈeɪtʃ. kəlˈiːnə ˈɛks pˈɜːpjʊɹɹˌæsənz hˈaɪbɹɪd swˈɔːɹm bˌiːɪŋ pɹˈɛzənt æt ðə vˈɛɹi sˈeɪm loʊkˈeɪʃən.
An expedition to the locus classicus of H. heterodoxa on the southwestern slopes of Ptari-tepui undertaken in May 2018 confirmed occurrences of one other species of Heliamphora, H. collina, as well as a H. collina x purpurascens hybrid swarm being present at the very same location.