Propolis sp. on Picea abies - Forum ASCOFrance

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Propolis sp. on Picea abies

Hulda Caroline Holte, 24-12-2025 17:08

Hello,

I have found this propoloid ascomycete on a dead branch, still attached to the living tree, of picea abies (in Norway). The apothecia are up to 1 mm diameter and are growing alongside lichens.

The ascospores are allantoid to ellipsoid and are filled with small guttules. The spore wall appears to be quite thick.

33,6-38,4 x (9,6) 10,4-12,8 µm

Me= 35,54 x 11,88 µm

Asci with croziers, measuring 172-182 x 24,6-32 µm (living) and 160-189,5 x 19,7 µm (dead). IKI-

The spores were measured in the living state from a spore print. All measurements were taken from fresh material in water.

Could this be Propolis hillmanniana?

Thank you in advance and best regards,

Hulda