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Nectria
Scientific Name: Nectria
Family: Hypocreaceae
Category: Lichen
Growth:
Duration:
Other Names:
Nectria: A Genus of Ascomycete Fungi
Nectria is a genus of Ascomycete fungi with diverse roles in various ecosystems. The most commonly known species is Nectria cinnabarina, also known as coral spot.
Considerations for Pets
- Some Nectria species invade wood damaged by animals and insects.
- Nectria cinnabarina can be found on branches of trees and shrubs.
Considerations for Children
- Nectria cinnabarina can be found on branches of trees and shrubs.
Taxonomy and Nomenclature
- Scientific Name: Nectria (Fr.) Fr., 1849
- Type Species: Nectria cinnabarina (Tode) Fr.
- Family: Nectriaceae
- Order: Hypocreales
- Class: Sordariomycetes
- Subphylum: Pezizomycotina
- Phylum: Ascomycota
- Synonyms/Related Taxa:
- Asexual form of Nectria cinnabarina: Tubercularia vulgaris
- Asexual form of Neonectria ditissima: Unspecified in provided text.
- Neonectria galligena (formerly classified under Nectria)
Distribution and Habitat
- Nectria species are found worldwide, especially in temperate regions of the Northern Hemisphere.
- They are frequently encountered on decaying wood as saprophytes.
- Specific distribution: Nectria cinnabarina is widely distributed throughout the range of its hosts in British Columbia.
Ecological Role
- Most often found as saprophytes on decaying wood.
- Some species, such as Nectria cinnabarina and Neonectria galligena, are plant pathogens, causing cankers and dieback, particularly in hardwood trees.
- Nectria haematococca can act as both a saprophyte and a plant or animal pathogen.
Morphological Characteristics
- Nectria species often produce raised, salmon-pink pustules on the branches of trees and shrubs, especially around dead wood.
- The fruit bodies (perithecia) of some species are bright red when fresh, almost translucent, smooth, spherical, and have central ostioles for spore release. They become duller with age.
- Nectria eustromatica sp. nov. is noted as an exceptional species with a hypocreaceous stroma.
Genetic Information
- The haploid chromosome number of 4 has been reported for Nectria violacea and N. candicans.
Interactions with Other Organisms
- Nectria species can invade wood damaged by insects and animals.
- Nectria coccinea contributes to Beech Bark Disease by colonizing bark attacked by the beech scale, Cryptococcus fagisuga.
- Some Nectria species develop on sporangia or aethalia of Myxomycetes.
Resources and Further Information
- Mycobank: Nectria
- Rogers Mushrooms (for information on Nectria peziza)
- UW-Madison Plant Pathology (for images of Nectria canker on honey locust)
- California Fungi (for images of Nectria cinnabarina)
- Tree Fruit Disease Management Series produced by Michigan State