Definitions for "Heterothallic"
A condition in which sexual reproduction will not occur except with another compatible thallus.
Self-sterile; a dikaryon or diploid results from fusion of compatible mating types.
Organisms (fungi, algae, plants) which can only undergo sexual reproduction with another bearing a different mating/compatibility type (self- incompatible). See also homothallic.
Producing fusing gametes on separate and distinct mycelia.