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Pyrenomycete
Hypocrea sulphurea (Schwein.) Sacc.
Fruiting Body

Flat yellow stroma, 1 x 1 mm to 7 x 3 cm on bark or bare wood, especially where Exidia fruits.

Spores

Ascospores disarticulate to form 2 inequal part spores, subglobose to ellipsoid (4.2) 5.2 6.5 (7.5)  (4.2) 5.2 7.0 (8.2) µm, and ellipsoidal to subcylindric (4.5) 5.5 7 (8.5)  (2.7) 4 5 (6.5) µm, hyaline, punctate, inamyloid.

Diagnostic macroscopic feature

Stroma looks like yellow smear on down wood because the host is dried down to apparently absent

Nutritional Mode

Parasite and possibly saprobic

Substrate

Jelly fungus Exidia, and wood, though probably where Exidia had fruited

Habitat

Dead branches and wood

Fruiting Season

Summer, fall

 
     
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