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02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

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Pachyphlodes Melanoxanthus ?
Ronald Morsink, 22-10-2022 15:13
Hello,

I found this 0.5 cm truffle on a stream bed.
Trees in the area are larch, Scots pine, oak and beech.
Half in the ground and half out of the ground in the Netherlands. 


Ascoma: globose to slightly flattened, black. Surface covered with low warts
Peridium black, with narrow warty cortex.
Gleba hyaline composed of a gelatinous matrix of small globular cells, with yellow veins radiating
Asci: 140-160 mu x 40mu. 8 spores in the asci. 
Spores: 17-22 mu with ornamentation.
Ornamentation 3-4 mu.


Sincerely,
Ronald Morsink

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Lothar Krieglsteiner, 22-10-2022 18:03
Lothar Krieglsteiner
Re : Pachyphloeus ?
Hello Ronald,
a Pachyphloeus for sure. I find the key, description and fotos in Montecchi & Sarasini often not fitting collections in a satisfying way. Unfortunately, no modern key seems to be available (?).
Yours, Lothar
Ronald Morsink, 22-10-2022 18:12
Re : Pachyphloeus ?
Hello Lothar, 

Thank you for your comment. 


In the book Nordic macromycetes Vol1 Ascomycetes there is a key with 3 species:
P. conglomeratus, P. citrinus and P. melanoxanthus.

P. melanoxanthus comes closest to the description and findings.

Here an atricle about Pachyphloeus melanoxanthus:
 https://reader.elsevier.com/reader/sd/pii/S1468164113000248?token=5D03AC4DB6330529265E7158848EA522CDF4D21C22A10B743AF2853084A655BAE24186BA101056186A9BE6CF78758785&originRegion=eu-west-1&originCreation=20221022183539


but i'm not sure 

Regards, 
Ronald. 

Ronald Morsink, 26-10-2022 19:18
Re : Pachyphlodes Melanoxanthus ?
Hello, 

The ripe spores are  brownish. 

Regards, 
Ronald.
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Nicolas VAN VOOREN, 29-10-2022 14:20
Nicolas VAN VOOREN
Re : Pachyphlodes Melanoxanthus ?
You should use Cotton Blue to get a better view of spore ornamentation. This could help to propose an ID