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07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

07-01-2026 17:29

Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:05

Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

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Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

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éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

William Slosse William Slosse

Good evening everyone,First of all, my best wishes

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Dactylospora stygia?
Lukas Verboom, 22-10-2025 14:45
Dear all,

I collected this in the Netherlands, on the base of Populus on wood among grass. The ascomata are up to 0.8 mm wide. The hypothecium is brownish, unchanging in K (pictures are in water). The hamathecium reacts blue with K/I, without a blue tholus. 
Spores are brown, two-celled, 15.1-16.2 x 5.0-5.6 um (N=8). I did not measure more to save material, since I don't have much of it, only a few discs.
The spores seem to be slightly broader than Dactylospora stygia, but I can't find any better suggestion. It doesn't seem to be parasitic on anything.

Can anyone help me with a name? I collected Dactylospora on bark before, but that material had four-celled spores and was smaller than this.
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