Microsphaera Russellii
''Microsphaera'' is a genus of powdery mildew in the family Erysiphaceae. References

Microsphaera, Erysiphales Fungal plant pathogens and diseases Taxa named by Joseph-Henri Léveillé Taxa described in 1851 Leotiomycetes genera {{Leotiomycetes-stub ...
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Cleistothecium
An ascocarp, or ascoma (: ascomata), is the fruiting body (sporocarp (fungi), sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded ascus, asci, each of which typically contains four to eight ascospores. Ascocarps are most commonly bowl-shaped (apothecia) but may take on a spherical or flask-like form that has a pore opening to release spores (perithecia) or no opening (cleistothecia). Classification The ascocarp is classified according to its placement (in ways not fundamental to the basic Taxonomy (biology), taxonomy). It is called ''epigeous'' if it grows above ground, as with the morels, while underground ascocarps, such as truffles, are termed ''hypogeous''. The structure enclosing the hymenium is divided into the types described below (apothecium, cleistothecium, etc.) and this character ''is'' important for the taxonomic classification of the fungus. Apothecia can be relatively large and fleshy, whereas the ot ...
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