Helotiales

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

Sclerotinia minor apothecium
Source: IPM Images

Helotiales

The Helotiales is a large group of ascomycete fungi with several thousand species. The group includes important plant pathogens like

• Botrytis cinerea (grey mould)
• Monilinia fructicola (American brown rot)
• Sclerotinia sclerotiorum (white mold)
• Oculimacula yallundae (eyespot disease in cereals)

In general, the fruiting bodies (apothecia) are cup-shaped or disc-shaped and often brightly coloured. The asci have slightly thickened apices and contain 8 ascospores. The group is mainly characterized by its DNA structure.

Note:
This page only deals with plant pathogenic Helotiales. For other groups see

• Helotiales antagonistic to plant diseases
• weed pathogens under Helotiales

The following genera and individual species are currently entered under Helotiales:

• Amphobotrys ricini
• Blumeriella jaapii
• Botrytis (anamorphic genus)
• Cadophora (anamorphic genus)
• Ciborinia camelliae
• Clarireedia (genus)
• Coleophoma (genus)
• Diplocarpon (genus)
• Drepanopeziza (genus)
• Godronia cassandrae
• Gremmeniella (genus)
• Grovesinia (genus)
• Helgardiomyces anguioides

• Hymenoscyphus (genus)
• Marssonina (anamorphic genus)
• Monilinia (genus)
• Neofabraea (genus)
• Oculimacula (genus)
• Phacidiopycnis (genus)
• Phlyctema vagabunda
• Pilidium lythri
• Pyrenopeziza (genus)
• Rhynchosporium (anamorphic genus)
• Sclerotinia (genus)
• Stromatinia cepivora
• Valdensia heterodoxa