Brown-spored Apothecia on wood

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Brown-spored Apothecia on wood

Stefan Blaser, 04-11-2019 19:17

Hello everybody,

I did have limited possibilities and time to work on this collection, but very likely the characteristics of the species are special enough to get some help here...

Ecology: On deciduous wood, most likely Tilia

Macro: Apothecia about 1-2 mm in Diameter, dark olive-green, discoid, in small groups. When old nearly black.

Micro: Spores brown, smooth, aseptate, filled with greenish oildrops, 11.5-13 x 7.5-9 µm. Paraphyses zylindric, about 2 µm broad, conspicuously filled with greenish oildrops that turn reddish in IKI. Asci IKI negative.

Thanks a lot for any help,

Stefan