Noun: cleistothecium (cleistothecia) ,klI-stu'thee-shee-um
- Closed spore-bearing structure of some fungi (especially Aspergillaceae and Erysiphaceae) from which spores are released only by decay or disintegration
"The cleistothecia of powdery mildew fungi appear as tiny black dots on infected leaves";
- cleistocarp
Derived forms: cleistothecia
Type of: ascocarp
Encyclopedia: Cleistothecium