One mycobiont associates with the same phycobiont species, rarely two, from the green algae, except that alternatively, the mycobiont may associate with a species of cyanobacteria (hence "photobiont" is the more accurate term).
wˈʌn mˈaɪkoʊbɪˌɑːnt ɐsˈoʊsɪˌeɪts wɪððə sˈeɪm fˌaɪkoʊbɪˈɑːnt spˈiːsiːz, ɹˈɛɹli tˈuː, fɹʌmðə ɡɹˈiːn ˈælɡiː, ɛksˈɛpt ðæt ɔːltˈɜːnətˌɪvli, ðə mˈaɪkoʊbɪˌɑːnt mˈeɪ ɐsˈoʊsɪˌeɪt wɪð ɐ spˈiːsiːz ʌv sˌaɪɐnˌɑːbɐktˈɪɹiə hˈɛns "fˈoʊɾoʊbɪˌɑːnt" ɪz ðə mˈoːɹ ˈækjʊɹət tˈɜːm.