Peronosporaceae
plural noun
Per·o·no·spo·ra·ce·ae
| \ ˌperənōspəˈrāsēˌē\
Definition of Peronosporaceae
: a family of parasitic fungi (order Peronosporales) in which the conidiophores form outside the epidermis of the host and develop conidia or sporangia singly or in clusters but never in chains — see downy mildew
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