Turquoise Elfcup

Chlorociboria aeruginosa

Chlorciboria aeruginosa is one of just two species recorded in the genus Chlorociboria, the other being Chlorociboria aeruginascens. Both result in green staining of timber.
Elfcups - Chlorociboria aeruginosa Blue-green fungi that have a cup-shaped fruiting body with a tiny, central stem. The fruiting body becomes flattened with age. They ranged in size from 1-3 mm wide. Chlorociboria aeruginascens,Chlorociboria aeruginosa,Fall,Geotagged,Green elfcup,Turquoise Elfcup,United States,fungus,mushroom

Appearance

Although C. aeruginosa tends to be a little smaller and very much rarer than C. aeruginascens, the fruitbodies of the two species cannot be confidently differentiated on macroscopic characteristics, but at 5-7 x 1-2µm the spores of Chlorciboria aeruginascens are significantly smaller than those of Chlorciboria aeruginosa (9-14 x 2-4µm).

Both species are more often seen in the form of green-stained wood than when when they are producing fruitbodies, but past records made without microscopic study of specimens may have confused the two species.
Elfcups - Chlorociboria aeruginosa Habitat: Rotting wood in a mixed forest Chlorociboria,Chlorociboria aeruginosa,Fall,Geotagged,Turquoise Elfcup,United States

Distribution

This ascomycetous fungus has a very wide geographical distribution that includes Europe and North America.

References:

Some text fragments are auto parsed from Wikipedia.

http://www.first-nature.com/fungi/chlorociboria-aeruginosa.php
https://en.wikipedia.org/wiki/Chlorociboria
Taxonomy
KingdomFungi
DivisionAscomycota
ClassLeotiomycetes
OrderHelotiales
FamilyHelotiaceae
GenusChlorociboria
SpeciesChlorociboria aeruginosa