Bionectriaceae Paranectria oropensis # Lichenicolous fungus. Photographs on Physcia tenella Occurs on a wide range of corticolous foliose, leprose or crustose lichens, particularly frequent in GB&I on some Lepraria spp Thin felt of whitish hyphae develops followed by small globose, orange perithecia (only visible for a few days). Asci 8-spored, spores hyaline, muriform, 25-36 x 11-14 µm, the apices attenuated. Micrograph below Similar: Erythricium aurantiacum (Marchandiomyces aurantiacus) can appear similar

Microscope photograph

Paranectria oropensis
Kingston Lacey, Dorset. December 2015