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Spaerostilbella? on Polyporus

Stefan Blaser, 30-12-2016 14:24

Hello everybody,

Any help on this one is welcome!

Host:
Most likely Polyporus sp.

Description:
Perithecia scattered, seated in a whitish Subiculum, brownish, no KOH reaction, slightly pyriform or nearly globose, about 0.2-0.3 x 0.3-0.35 mm (b x h). Anamorph between Perithecia.

Asci IKI negative, about 80-100 x 4-5 µm. Spores two-celled, without appendages, hyaline, verrucose, mostly with a narrower and a broader cell, 10-13 (-15) x 3-4 µm.
Anamorph ?Gliocladium?, with one-celled, hyaline, ellipsoid conidia 3-5.5 x 2-2.5(-3).

Many thanks,

Stefan

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