Pyth·​i·​a·​cys·​tis | \ ˌpithēəˈsistə̇s\

Definition of Pythiacystis

in former classifications
: a genus of fungi (family Pythiaceae) comprising a single species (P. citrophthora) that causes brown rot of citrus fruits and gummosis of citrus and other fruits and is now usually included in Phytophthora

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History and Etymology for Pythiacystis

New Latin, from pythia- (from Pythium) + -cystis

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