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19-03-2026 18:25

Myriosclerotinia curreyana?
William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood
Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

17-03-2026 10:09

Lasiobelonium corticale ?
François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

"Lasiosphaerioid"
Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Massarina on Corylus
Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Orbilia on Celtis occidentalis
Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Pyréno sur branche morte de chêne
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Literature search
Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Sporodochial anamorph on Populus with angular, pigmented conidia - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Nemania diffusa complex
Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

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Lachnum sp.
Åge Oterhals, 09-02-2026 11:42
Hi forum, 
I found this Lachnum on old hardwood twig yesterday. 
Apothecium 1,1-1,3 mm, stipe 1,3 mm.
Hairs with abundant crystals, 81- 110 x 2,9 µm
Paraphysis protruding 10-22 µm ; narrow lanceolate with width 3,8-4,4 µm
Asci 65-73 x 5,4-6,4 µm, I+.
Sp. 10-12,2 x 2,8-3,4 µm (N=10)

Regards,
Åge
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Hans-Otto Baral, 09-02-2026 15:03
Hans-Otto Baral
Re : Lachnum sp.
I think this is L. virgineum. The hair contens and length are as I expect, and the asci look like having croziers.

The spores look a bit wide but I measure only 3 µm as a maximum according to your scale.
Åge Oterhals, 09-02-2026 16:55
Re : Lachnum sp.
Thank you Zotto,
I can confirm that the asci have croziers.
The wider than normal (1,5-2,5 um) spores confused me. On average the 10 measured spores have a width of 3,1 um. This is still within an acceptable variability for the species?

Best,
Åge

Hans-Otto Baral, 09-02-2026 17:26
Hans-Otto Baral
Re : Lachnum sp.
1.5-2.5 µm stands in Ellis & Ellis. I doubt that they mearured living spores. The spores are really large, but I have no other idea. You ascus data refer to dead asci which is likewise a bit much.
Åge Oterhals, 09-02-2026 17:42
Re : Lachnum sp.
Thanks for the clarification.
Best,
Åge