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29-12-2023 10:16

Lachnum virgineum ?
Thierry Blondelle Thierry Blondelle

HelloJust a confirmation of Lachnum virgineum foun

27-12-2023 16:55

Parascutellinia carneosanguinea?
Karl Soler Kinnerbäck

I think this looks very good for Parascutellinia c

27-12-2023 18:32

Lamprospora tuberculatella on Weissia sp.?
Edvin Johannesen Edvin Johannesen

These tiny apothecia were collected in Western Nor

28-12-2023 10:54

Lachnum sp.
B Shelbourne B Shelbourne

I think this is Lachnum impudicum. Any feedback is

25-12-2023 17:10

Hyaloscypha?
Milan Malek Milan Malek

Hello forum, this is my first post. I´d like to

26-12-2023 11:00

Discinella? lichen? On soil
Robin Isaksson Robin Isaksson

Found on silicate soil in alpine habitat in northe

26-12-2023 23:10

Pezicula acericola ?
Patrice TANCHAUD

Bonsoir, récolte sur Acer campestre, spores 32-4

23-12-2023 05:43

Asco sp.
Gwenaël Cartier

Montréal, 19 décembre 2023.Forêt de feuillus, s

24-12-2023 11:59

Possible Orbilia sp.
B Shelbourne B Shelbourne

Hi all, first post.Just started looking at Ascos,

22-12-2023 18:53

Disco on Huperzia
Karl Soler Kinnerbäck

This discomycete was found on Huperzia selago in n

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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