''Podosphaera filipendulae'' is a fungal species that belongs to the genus ''

Podosphaera ''Podosphaera'' is a genus of fungi in the family Erysiphaceae. Species in this genus are plant pathogens, causing powdery mildew. Species *'' Podosphaera aphanis'' *'' Podosphaera balsaminae'' * ''Podosphaera clandestina'' var. ''aucupariae'' ...

'' and the order Erysiphaceae. It was first described with meadowsweet (''

Filipendula ulmaria ''Filipendula ulmaria'', commonly known as meadowsweet or mead wort, is a perennial herbaceous plant in the family Rosaceae that grows in damp meadows. It is native throughout most of Europe and Western Asia (Near east and Middle east). It has ...

'') as the host plant. ''Podosphaera filipendulae'' is morphologically identical to ''Podosphaera spiraeae'' and was considered synonymous. However, DNA sequencing can distinguish between isolates of the two species so they are currently considered separate species. This fungus is a pathogen of meadowsweet that causes powdery mildew on the plant's leaves and flower heads and distorts their growth. It can be evident throughout the growth cycle from spring to autumn. It produces chains of oval

conidia A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the ...

as well as groups of

cleistothecia An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are ...

References

{{Taxonbar, from=Q104846915 Fungal plant pathogens and diseases Vegetable diseases filipendulae Fungi described in 1981