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26-12-2025 21:19

Pithyella chalaudii Priou.; als Bryoprasit auf einem weiteren Wirt gefunden.
Arnold Büschlen

Pithyella chalaudii Priou. Ist als Bryoparasit in

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

18-12-2025 21:17

Two collections of yellowish discs on bare ground
Pol Debaenst

The identification took me to Byssonectria deformi

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

24-12-2025 17:08

Propolis sp. on Picea abies
Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

23-12-2025 11:27

blanc poilu
Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Small resin asco?
Mirek Gryc

Hi. „I doubt it is possible to identify this ti

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

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Protounguicularia transiens?
Edvin Johannesen, 04-11-2025 12:43
Edvin JohannesenHi!

One more found on old Populus tremula log in Oslo, Norway. Apos 0.1-0.4 mm. Spores ca. 6-7x3-3.5 micr. with two large guttules. Hairs with glassy, amyloid tips. Some hairs with orange incrustration/resin. Asci IKI+ (blue in Lugol). Not sure about croziers.

I think it looks a lot like Protounguicularia (Olla) transiens, but both asci and spores seem to be a bit too broad. And does that species have coloured incrustations?

Some apos associated with a white anamorph (photo), but probably just a coincidence.

Are there other possibilities?

Thanks!
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Edvin Johannesen, 04-11-2025 12:46
Edvin Johannesen
Re : Protounguicularia transiens?
Hairs - glassy ones in Meltzer's, incrusted ones in water.
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Hans-Otto Baral, 04-11-2025 17:10
Hans-Otto Baral
Re : Protounguicularia transiens?
Looks much like Olla transiens. Yes, the spores are a bit broad, but such occur.

Living asci are (6.5-)7.5-8.5(-10) broad.

The species occurs in a brown variant with heavy brown incrustation. JP Priou observed spores like you, with partly large drops: JPP 26058
Edvin Johannesen, 04-11-2025 17:23
Edvin Johannesen
Re : Protounguicularia transiens?
Thanks again, Zotto. Apos turn a bit brownish with "age".