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Related to heterothallic: homothallic
Reproducing by cross-fertilization between individuals of different mating types. Used of certain fungi and algae.
1. (Botany) (of some algae and fungi) having male and female reproductive organs on different thalli
2. (Botany) (of some fungi) having sexual reproduction that occurs only between two self-sterile mycelia
[C20: from hetero- + Greek thallos green shoot, young twig]
ˌheteroˈthallism, ˌheteroˈthally n
het•er•o•thal•lic(ˌhɛt ər əˈθæl ɪk)
having mycelia of two unlike types, both of which must participate in the sexual process.