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03-02-2026 20:44

Mycoparasite with irregular conidia
Zetti Mario

When I first saw this white mould on an Agaricus s

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Dark disc on Populus
Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera
Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Lichenicole hypocreale
Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Scutellinia hirta ? sur souche moussue
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Lambertella sur Olea
Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

Calycina ?
éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Small hairy discs on Castanea
Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

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Hymenoscypus sp.
oyvind weholt, 12-06-2016 10:44
Anyone knows the name of this Hymenoscypus? 2-4 mm. Grows on heap of old straw, grass. Spores 13.1-18.0  x 3.2-4.2 my, 0-1 septate.
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Hans-Otto Baral, 12-06-2016 12:47
Hans-Otto Baral
Re : Hymenoscypus sp.
I am sorry but there are several possibilities. Without living spores, best with a photo, I can say nothing. Possible would be Hymenoscyphus menthae which has multiguttulate spores.
oyvind weholt, 12-06-2016 13:58
Re : Hymenoscypus sp.
Thanks for your comment. H.menthae seems to be in good agreement I will try to have a photo of the spores.
oyvind weholt, 16-06-2016 18:19
Re : Hymenoscypus sp.
Have now micropictures. Spores (14.4) 15.9 - 20.9 (21.9) × (3) 3.1 - 3.9 (4.1) µm, Q = (4.2) 4.4 - 6.5 (6.7) ; N = 30,Me = 18.9 × 3.5 µm ; Qe = 5.4. Conclusion is we think this must be Hymenoscyphus menthae.
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Per Vetlesen, 16-06-2016 21:18
Re : Hymenoscypus sp.
Some more photos
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Hans-Otto Baral, 16-06-2016 21:43
Hans-Otto Baral
Re : Hymenoscypus sp.
Yes, this is great, quite clearly without croziers, and spore guttulation/spore size correct.
4 mm diam. is actually very rarely attained, but it occurred.

So this will be the first record for Scandinavia outside of Denmark!
Zotto
Per Vetlesen, 17-06-2016 11:35
Re : Hymenoscypus sp.
Thank you very much for all help.
The tree apothecia I have seen measured: 0.8 - 2 × 0.4 - 1 mm.

Per