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30-07-2025 10:12

Bernard CLESSE Bernard CLESSE

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

31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 18:06

Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

24-07-2025 19:02

Castillo Joseba Castillo Joseba

De esta mañana en tronco caido de Haya A ver si

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Carbophilous discomycete - Anthracobia pseudorehmii?
Andreas Gminder, 31-07-2025 16:32
Andreas GminderDear collegues,
today I found on a very fresh fire place (forest fire, appr. 4 weeks ago) besides millions of Anthracobia macrocystis and A. tristes a dark brown discomycete grown in dense fascicels which I can not determine at all.

At first I thought it could be a Pseudombrophila, but it is not. The exterieur looked like beset with web-like s hairs, but it turned out to be a kind of resinous amorphous mass with only a few hyphoids between.
Spores are fusoid, multiguttulate, 16,5-18,5 x 6 µm.
Paraphyses only slightly enlarged at the tip, often somewhat bent, but also sometimes +/- straight, no carotinoids and no guttules at all, but they seem to contain a vacuolar pigment and probably additionally some faint incrustations at the upper part, not branched.
Asci eight-spored, quite short, appr. 135 x 10 µm.
The species is growing in dense fascicules as well as gregarious or even scattered.


I was thinking of Paranthracobia rhemii, but the spores are far to small. On the other hand there is an "Anthracobia pseudorehmii ad int." annotated by Nicolas van Vooren in the Anthracobia-key of Hohmeyer & Schnackertz (doi: 10.25664/KEY-0005). This one would suite quite well, butz may be I'm complete in a wrong genus with my fungus ....


Thank you for any hints,
Andreas

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Nicolas VAN VOOREN, 31-07-2025 17:29
Nicolas VAN VOOREN
Re : Carbophilous discomycete - Anthracobia pseudorehmii?
Hi Andreas.
I'm working with Alexander Karich (I suppose you know him) on a revision of Anthracobia spp. Your collection of A. macrocystis is interesting for this study, because this is probably the rarest species in this genus, and we lack molecular data. So if you can send a part to me, this would be cool.
About the another species, so called "A. pseudorehmii", Alexander also found it during his survey in German burnt sites. And this is not an Anthracobia. The preliminary results place it in the genus Warcupia! I suspect also Anthracobia uncinata to belong to the same genus.
Of course, a molecular confirmation should be welcome and we can do it in the course of our study.
You can contact me if need more details.
Best.
Nicolas