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27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

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

29-04-2026 08:01

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 21:53

William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Pablo Sandoval Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

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Lachnum virgineum ?
Thierry Blondelle, 29-12-2023 10:16
Thierry BlondelleHello
Just a confirmation of Lachnum virgineum found on dead chestnut wood. Attached are the photos of the microscopy. Thanks.
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Michel Hairaud, 29-12-2023 10:39
Michel Hairaud
Re : Lachnum virgineum ?
Hi Thierry, 
It seems that the last cells of the hairs you show are smooth , which would rather match Dasyscyphella intead of LAchnum

Or am I wrong ? 
AmitiésMichel
Thierry Blondelle, 29-12-2023 13:35
Thierry Blondelle
Re : Lachnum virgineum ?
Hi Michel

I think you are right. New observations point in your direction. What species are you thinking of? I saw that there was a castaneicola species.
PS: I am looking for a key to determining the genera of felted or hairy inoperculate ascomycetes. Is there one?

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Thierry Blondelle, 29-12-2023 13:52
Thierry Blondelle
Re : Lachnum virgineum ?
Ain Raitviir's key which takes into account the length of the last article of the hair and the length of the spores leads to D. nivea.
Michel Hairaud, 29-12-2023 18:15
Michel Hairaud
Re : Lachnum virgineum ?
D. nivea is a common species through all winter and can be found nearly systematically on lower faces of Quercus stumps or other hardwood. 
Michel
Guy Marson, 30-12-2023 22:43
Re : Lachnum virgineum ?
Hi Thierry, 


What various authors consider to be Lachnum virgineum consists genetically of 5 species, as can be seen in a small section of the ITS1 (-> screenshot of an ailgnment below).

What Lachnum virgineum really is cannot be identified genetically either, because the first description of Lachnum virgineum (Batsch) P. Karst. (1871) is too old to be sequenced.

My best wishes for 2024 :).


Guy

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Thierry Blondelle, 31-12-2023 08:23
Thierry Blondelle
Re : Lachnum virgineum ?
Thank you Guy for this update on Lachnum virgineum.
Best wishes too