Mycosphaerella
noun
My·co·sphaerella
| \ ˌmīkō+\
Definition of Mycosphaerella
: a genus (the type of the family Mycosphaerellaceae) of fungi of the order Sphaeriales having 2-celled ascospores borne in perithecia that are immersed in dead portions of the host — see currant leaf spot
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