Hypocreopsis rhododendri

Photo: Roger Cottis

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Description

General: Fruit body in the form of a large, orange-brown flattened lobes in radiating arrangement; on dead branches of deciduous trees favouring hazel, rhododendron and willow.
Dimensions: Up to 10cm dia.
Fruit Body: light yellowish-brown to orange-brown, more pallid at the margin, minutely dotted with the osteoles of embedded perithecia; flattened and conforming more or less to the surface of the substrate, arranged in radiating lobes; flesh: tough, woody. Asci: Narrowly clavate 160-180 x 8-10 µm.
Spores: (8) hyaline, coarsely warty, ellipsoid, uniseriate, median septum, ??? x ??? µm.
Odour: Not Distinctive.
Taste: Not Distinctive.
Chemical Tests: None.
Occurrence: Autumn to Spring.

 

Qualifying criterion: 4.4: rare species normally associated with Atlantic hazel woods
Justification: the habitat has declined markedly and is now threatened
Threats: scrub clearance, coppicing, over-grazing
Action Required: Survey and monitoring, increasing awareness, habitat protection against loss and degradation

 

Statistics:

UK (excluding NI & CI) fungus records

 

Total records: 49

Earliest recording: 1973
Latest recording: 2006
Vice Counties and (frequency): 98(28); 103(10); 104(3)
Pre-1960: 0 records
NBN Gateway grid map Post-1960: 44 records