Leotiomycetes

Ascomycota • fungi • plant diseases • pests-diseases-weeds

Uncinula tulasnei (click on image to enlarge it)
Source: [Wikimedia Commons]

Leotiomycetes

The Leotiomycetes are an important class of ascomycete fungi and include many plant pathogens, like the powdery mildews. The fruiting bodies are cup-shaped (apothecia) or closed (chasmothecia) and may be brightly coloured. They vary in size from golfball-size to tiny, closed ascomata with one or several asci. Today, the characterization of the Leotiomycetes is based on their genetic structure.

Note:
This page only deals with plant pathogens. For other groups of Leotiomycetes in the system see

• Leotiomycetes (antagonists)
• Leotiomycetes (weed pathogens)

The following orders and groups are here included:

• Erysiphales (powdery mildews)‎‎
• Helotiales‎
• Phacidiales
• Rhytismatales‎