ans ky ▁seems ▁to ▁have ▁been ▁a ▁des erved ly ▁prominent ▁botan ist ▁in ▁his ▁day , ▁with ▁some ▁views ▁on ▁tax onomy ▁quite ▁advanced ▁for ▁his ▁time . ▁ ▁Pol lin ators ▁Super f icial ly ▁the ▁shape ▁of ▁the ▁flowers ▁is ▁strik ingly ▁ph lo x - like , ▁hence ▁the ▁design ation ▁' night ▁ph lo x ', ▁for ▁their ▁evening ▁fra gr ance . ▁The ▁fra gr ance ▁after ▁dark ▁suggests ▁that ▁in ▁nature ▁the ▁species ▁in ▁question ▁are ▁pol lin ated ▁by ▁moth s , ▁whereas ▁day - pol lin ated ▁species ▁often ▁have ▁little ▁or ▁no ▁obvious ▁sc ent . ▁Research ▁is ▁in ▁progress ▁on ▁the ▁e colog ical ▁and ▁evolution ary ▁relationships ▁between ▁some ▁members ▁of ▁the ▁genus ▁and ▁special ist ▁long - t ong ued ▁pol lin ators , ▁particularly ▁night ▁flying ▁ha w k ▁moth s ▁( family ▁S ph ing idae ) ▁and ▁f lies ▁in ▁the ▁families ▁Nem estr in idae , ▁T aban idae , ▁and ▁Bom by li idae . ▁Day - f lying ▁ha w k ▁moth s , ▁such ▁as ▁the ▁genus ▁Mac ro gl os sum ▁( hum ming bird ▁ha w k ▁moth s ) ▁also ▁seem ▁to ▁be ▁significant ▁pol lin ators ▁of ▁many ▁species ▁of ▁Z alu zi ans ky a . ▁ ▁Cult iv ation ▁Z alu zi ans ky a ▁species ▁have ▁not ▁been ▁of ▁h ort icult ural ▁significance ▁until ▁recently . ▁Z alu zi ans ky a ▁rub ro stell