Chlorencoelia versiformis

Photo: George Barron

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Description

General: Small olive-green saucer-shaped irregular discs; in clusters on damp, rotten wood of broadleaf trees, favouring alder and oak, but also reported on ash and willow.
Dimensions: 0.5-1.5cm dia.
Fruit Body: Apothecium dull olive-green to mustard-yellow; top-shaped when young then flat or saucer-shaped, undulating; upper (hymenial) surface smooth, lower surface somewhat darker and finely downy; flesh: concolorous, thin.
Asci: Cylindrical 80-100 x 7 µm. Paraphyses cylindrical.
Spores: (8) Hyaline, smooth, cylindrical with rounded ends, with 2 droplets, 9-13 x 3.0-3.5 µm.
Odour: Not distinctive.
Taste: Not distinctive.
Chemical Tests: None.
Occurrence: Autumn.

 

Qualifying criterion: 4.7: very rare species with restricted range
Justification: saprotroph on dead wood of broadleaf species that has declined in hectads by more than 50% pre- and post-1960
Threats: removal of dead wood and 'tidying'
Action Required: ecological assessment, survey and monitoring, protection against habitat loss and degradation

 

Statistics:

UK (excluding NI & CI) fungus records

 

Total records: 28

Earliest recording: 1837
Latest recording: 2006
Vice Counties and (frequency): 5(2); 6(3); 7(5); 11(4); 17(5); 22(2); 32(4); 33(3)
Pre-1960: 18 records
NBN Gateway grid map Post-1960: 10 records